<?xml version="1.0"?>
<informationTable xmlns="http://www.sec.gov/edgar/document/thirteenf/informationtable" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><infoTable><nameOfIssuer>AC IMMUNE SA</nameOfIssuer><titleOfClass>SHS</titleOfClass><cusip>H00263105</cusip><value>223</value><shrsOrPrnAmt><sshPrnamt>17168</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>17168</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>ACHAOGEN INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>004449104</cusip><value>1302</value><shrsOrPrnAmt><sshPrnamt>100000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>100000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>ACLARIS THERAPEUTICS INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>00461U105</cusip><value>3439</value><shrsOrPrnAmt><sshPrnamt>126700</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>126700</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>ACUSHNET HOLDINGS CORP</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>005098108</cusip><value>4435</value><shrsOrPrnAmt><sshPrnamt>225000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>225000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>ALERE INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>01449J105</cusip><value>450</value><shrsOrPrnAmt><sshPrnamt>11552</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>11552</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>ALGONQUIN PWR UTILS CORP</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>015857105</cusip><value>2120</value><shrsOrPrnAmt><sshPrnamt>250000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>250000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>APOLLO COML REAL EST FIN INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>03762U105</cusip><value>3324</value><shrsOrPrnAmt><sshPrnamt>200000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>200000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>ATHENE HLDG LTD</nameOfIssuer><titleOfClass>CL A</titleOfClass><cusip>G0684D107</cusip><value>5853</value><shrsOrPrnAmt><sshPrnamt>121970</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>121970</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>ATKORE INTL GROUP INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>047649108</cusip><value>4184</value><shrsOrPrnAmt><sshPrnamt>175000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>175000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>AVISTA HEALTHCARE PUB ACQ CO</nameOfIssuer><titleOfClass>UNIT 99/99/9999</titleOfClass><cusip>G0726L109</cusip><value>2025</value><shrsOrPrnAmt><sshPrnamt>200000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>200000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>AZURE PWR GLOBAL LTD</nameOfIssuer><titleOfClass>SHS</titleOfClass><cusip>V0393H103</cusip><value>340</value><shrsOrPrnAmt><sshPrnamt>20000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>20000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>BANK OF NT BUTTERFIELD&amp;SON L</nameOfIssuer><titleOfClass>SHS NEW</titleOfClass><cusip>G0772R208</cusip><value>1283</value><shrsOrPrnAmt><sshPrnamt>40797</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>40797</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>BAOZUN INC</nameOfIssuer><titleOfClass>SPONSORED ADR</titleOfClass><cusip>06684L103</cusip><value>1328</value><shrsOrPrnAmt><sshPrnamt>110000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>110000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>BAYTEX ENERGY CORP</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>07317Q105</cusip><value>1220</value><shrsOrPrnAmt><sshPrnamt>250000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>250000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>BIOAMBER INC</nameOfIssuer><titleOfClass>*W EXP 05/09/201</titleOfClass><cusip>09072Q114</cusip><value>105</value><shrsOrPrnAmt><sshPrnamt>150000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>150000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>BLUEPRINT MEDICINES CORP</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>09627Y109</cusip><value>2244</value><shrsOrPrnAmt><sshPrnamt>80000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>80000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>BMC STK HLDGS INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>05591B109</cusip><value>1163</value><shrsOrPrnAmt><sshPrnamt>59616</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>59616</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>BOJANGLES INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>097488100</cusip><value>2798</value><shrsOrPrnAmt><sshPrnamt>150000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>150000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>BOOZ ALLEN HAMILTON HLDG COR</nameOfIssuer><titleOfClass>CL A</titleOfClass><cusip>099502106</cusip><value>721</value><shrsOrPrnAmt><sshPrnamt>20000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>20000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>BROADCOM LTD</nameOfIssuer><titleOfClass>SHS</titleOfClass><cusip>Y09827109</cusip><value>3505</value><shrsOrPrnAmt><sshPrnamt>19828</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>19828</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>CALLON PETE CO DEL</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>13123X102</cusip><value>4611</value><shrsOrPrnAmt><sshPrnamt>300000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>300000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>CAPITAL BK FINL CORP</nameOfIssuer><titleOfClass>CL A COM</titleOfClass><cusip>139794101</cusip><value>2944</value><shrsOrPrnAmt><sshPrnamt>75000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>75000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>CLEAN ENERGY FUELS CORP</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>184499101</cusip><value>5241</value><shrsOrPrnAmt><sshPrnamt>1832643</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>1832643</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>CLEARSIDE BIOMEDICAL INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>185063104</cusip><value>671</value><shrsOrPrnAmt><sshPrnamt>75000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>75000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>COMPASS DIVERSIFIED HOLDINGS</nameOfIssuer><titleOfClass>SH BEN INT</titleOfClass><cusip>20451Q104</cusip><value>1790</value><shrsOrPrnAmt><sshPrnamt>100000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>100000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>CONNECTONE BANCORP INC NEW</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>20786W107</cusip><value>1298</value><shrsOrPrnAmt><sshPrnamt>50000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>50000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>COSTAMARE INC</nameOfIssuer><titleOfClass>SHS</titleOfClass><cusip>Y1771G102</cusip><value>560</value><shrsOrPrnAmt><sshPrnamt>100000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>100000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>CRISPR THERAPEUTICS AG</nameOfIssuer><titleOfClass>NAMEN AKT</titleOfClass><cusip>H17182108</cusip><value>146</value><shrsOrPrnAmt><sshPrnamt>7186</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>7186</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>DERMIRA INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>24983L104</cusip><value>955</value><shrsOrPrnAmt><sshPrnamt>31502</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>31502</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>DIAMONDBACK ENERGY INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>25278X109</cusip><value>10106</value><shrsOrPrnAmt><sshPrnamt>100000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>100000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>E L F BEAUTY INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>26856L103</cusip><value>383</value><shrsOrPrnAmt><sshPrnamt>13243</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>13243</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>EIGER BIOPHARMACEUTICALS INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>28249U105</cusip><value>367</value><shrsOrPrnAmt><sshPrnamt>31500</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>31500</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>FAIRMOUNT SANTROL HLDGS INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>30555Q108</cusip><value>590</value><shrsOrPrnAmt><sshPrnamt>50000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>50000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>FIRST BANCORP P R</nameOfIssuer><titleOfClass>COM NEW</titleOfClass><cusip>318672706</cusip><value>496</value><shrsOrPrnAmt><sshPrnamt>75000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>75000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>FORUM ENERGY TECHNOLOGIES IN</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>34984V100</cusip><value>3300</value><shrsOrPrnAmt><sshPrnamt>150000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>150000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>GEMPHIRE THERAPEUTICS INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>36870A108</cusip><value>103</value><shrsOrPrnAmt><sshPrnamt>13191</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>13191</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>GENESEE &amp; WYO INC</nameOfIssuer><titleOfClass>CL A</titleOfClass><cusip>371559105</cusip><value>9465</value><shrsOrPrnAmt><sshPrnamt>136358</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>136358</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>GLOBAL EAGLE ENTMT INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>37951D102</cusip><value>2057</value><shrsOrPrnAmt><sshPrnamt>318466</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>318466</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>GRAN TIERRA ENERGY INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>38500T101</cusip><value>906</value><shrsOrPrnAmt><sshPrnamt>300000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>300000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>GULFPORT ENERGY CORP</nameOfIssuer><titleOfClass>COM NEW</titleOfClass><cusip>402635304</cusip><value>12053</value><shrsOrPrnAmt><sshPrnamt>557000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>557000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>HANCOCK HLDG CO</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>410120109</cusip><value>6465</value><shrsOrPrnAmt><sshPrnamt>150000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>150000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>HUDSON TECHNOLOGIES INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>444144109</cusip><value>817</value><shrsOrPrnAmt><sshPrnamt>102000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>102000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>IAC INTERACTIVECORP</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>44919P508</cusip><value>972</value><shrsOrPrnAmt><sshPrnamt>15000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>15000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>IBERIABANK CORP</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>450828108</cusip><value>1089</value><shrsOrPrnAmt><sshPrnamt>13000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>13000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>ICHOR HOLDINGS</nameOfIssuer><titleOfClass>SHS</titleOfClass><cusip>G4740B105</cusip><value>2705</value><shrsOrPrnAmt><sshPrnamt>250000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>250000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>IRHYTHM TECHNOLOGIES INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>450056106</cusip><value>564</value><shrsOrPrnAmt><sshPrnamt>18791</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>18791</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>JERNIGAN CAP INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>476405105</cusip><value>2105</value><shrsOrPrnAmt><sshPrnamt>100000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>100000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>KINSALE CAP GROUP INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>49714P108</cusip><value>340</value><shrsOrPrnAmt><sshPrnamt>10000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>10000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>LADDER CAP CORP</nameOfIssuer><titleOfClass>CL A</titleOfClass><cusip>505743104</cusip><value>3164</value><shrsOrPrnAmt><sshPrnamt>230590</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>230590</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>LANDCADIA HLDGS INC</nameOfIssuer><titleOfClass>*W EXP 06/01/202</titleOfClass><cusip>51476W115</cusip><value>140</value><shrsOrPrnAmt><sshPrnamt>200000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>200000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>LPL FINL HLDGS INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>50212V100</cusip><value>3521</value><shrsOrPrnAmt><sshPrnamt>100000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>100000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>MATADOR RES CO</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>576485205</cusip><value>1288</value><shrsOrPrnAmt><sshPrnamt>50000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>50000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>MEDPACE HLDGS INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>58506Q109</cusip><value>1022</value><shrsOrPrnAmt><sshPrnamt>28324</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>28324</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>MELCO CROWN ENTMT LTD</nameOfIssuer><titleOfClass>ADR</titleOfClass><cusip>585464100</cusip><value>5406</value><shrsOrPrnAmt><sshPrnamt>340000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>340000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>MICHAELS COS INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>59408Q106</cusip><value>4306</value><shrsOrPrnAmt><sshPrnamt>210559</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>210559</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>NATIONAL STORAGE AFFILIATES</nameOfIssuer><titleOfClass>COM SHS BEN IN</titleOfClass><cusip>637870106</cusip><value>2759</value><shrsOrPrnAmt><sshPrnamt>125000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>125000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>NEURODERM LTD</nameOfIssuer><titleOfClass>ORD SHS</titleOfClass><cusip>M74231107</cusip><value>2220</value><shrsOrPrnAmt><sshPrnamt>100000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>100000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>NORTHSTAR ASSET MGMT GROUP I</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>66705Y104</cusip><value>1492</value><shrsOrPrnAmt><sshPrnamt>100000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>100000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>OM ASSET MGMT PLC</nameOfIssuer><titleOfClass>SHS</titleOfClass><cusip>G67506108</cusip><value>3263</value><shrsOrPrnAmt><sshPrnamt>225000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>225000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>ONCOBIOLOGICS INC</nameOfIssuer><titleOfClass>*W EXP 02/18/201</titleOfClass><cusip>68235M113</cusip><value>5</value><shrsOrPrnAmt><sshPrnamt>25000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>25000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>ONCOBIOLOGICS INC</nameOfIssuer><titleOfClass>*W EXP 05/18/201</titleOfClass><cusip>68235M121</cusip><value>20</value><shrsOrPrnAmt><sshPrnamt>25000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>25000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>OPEN TEXT CORP</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>683715106</cusip><value>1576</value><shrsOrPrnAmt><sshPrnamt>51000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>51000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>PACIFIC ETHANOL INC</nameOfIssuer><titleOfClass>COM PAR $.001</titleOfClass><cusip>69423U305</cusip><value>4026</value><shrsOrPrnAmt><sshPrnamt>423800</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>423800</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>PBF ENERGY INC</nameOfIssuer><titleOfClass>CL A</titleOfClass><cusip>69318G106</cusip><value>5576</value><shrsOrPrnAmt><sshPrnamt>200000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>200000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>PIONEER ENERGY SVCS CORP</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>723664108</cusip><value>2398</value><shrsOrPrnAmt><sshPrnamt>350000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>350000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>RA PHARMACEUTICALS INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>74933V108</cusip><value>230</value><shrsOrPrnAmt><sshPrnamt>15147</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>15147</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>RECRO PHARMA INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>75629F109</cusip><value>419</value><shrsOrPrnAmt><sshPrnamt>52000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>52000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>RENASANT CORP</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>75970E107</cusip><value>4222</value><shrsOrPrnAmt><sshPrnamt>100000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>100000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>RESOLUTE ENERGY CORP</nameOfIssuer><titleOfClass>COM NEW</titleOfClass><cusip>76116A306</cusip><value>3540</value><shrsOrPrnAmt><sshPrnamt>85954</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>85954</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>ROYAL CARIBBEAN CRUISES LTD</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>V7780T103</cusip><value>2478</value><shrsOrPrnAmt><sshPrnamt>30200</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>30200</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>SITEONE LANDSCAPE SUPPLY INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>82982L103</cusip><value>3473</value><shrsOrPrnAmt><sshPrnamt>100000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>100000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>SMART SAND INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>83191H107</cusip><value>620</value><shrsOrPrnAmt><sshPrnamt>37457</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>37457</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>SOUTHSIDE BANCSHARES INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>84470P109</cusip><value>504</value><shrsOrPrnAmt><sshPrnamt>13371</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>13371</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>STARWOOD PPTY TR INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>85571B105</cusip><value>3293</value><shrsOrPrnAmt><sshPrnamt>150000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>150000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>SUCAMPO PHARMACEUTICALS INC</nameOfIssuer><titleOfClass>CL A</titleOfClass><cusip>864909106</cusip><value>474</value><shrsOrPrnAmt><sshPrnamt>35000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>35000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>TESARO INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>881569107</cusip><value>6724</value><shrsOrPrnAmt><sshPrnamt>50000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>50000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>TETRA TECHNOLOGIES INC DEL</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>88162F105</cusip><value>1506</value><shrsOrPrnAmt><sshPrnamt>300000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>300000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>TRINET GROUP INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>896288107</cusip><value>910</value><shrsOrPrnAmt><sshPrnamt>35500</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>35500</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>TRIVAGO N V</nameOfIssuer><titleOfClass>SPON ADS A SHS</titleOfClass><cusip>89686D105</cusip><value>2644</value><shrsOrPrnAmt><sshPrnamt>225000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>225000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>TRUPANION INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>898202106</cusip><value>668</value><shrsOrPrnAmt><sshPrnamt>43010</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>
		</otherManager><votingAuthority><Sole>43010</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>VALLEY NATL BANCORP</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>919794107</cusip><value>5820</value><shrsOrPrnAmt><sshPrnamt>500000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>500000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>WILDHORSE RESOURCE DEV CORP</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>96812T102</cusip><value>4380</value><shrsOrPrnAmt><sshPrnamt>300000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>300000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>WILLIAMS COS INC DEL</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>969457100</cusip><value>2491</value><shrsOrPrnAmt><sshPrnamt>80000</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>80000</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable><infoTable><nameOfIssuer>XENCOR INC</nameOfIssuer><titleOfClass>COM</titleOfClass><cusip>98401F105</cusip><value>3682</value><shrsOrPrnAmt><sshPrnamt>139900</sshPrnamt><sshPrnamtType>SH</sshPrnamtType></shrsOrPrnAmt><investmentDiscretion>SOLE</investmentDiscretion><otherManager>1</otherManager><votingAuthority><Sole>139900</Sole><Shared>0</Shared><None>0</None></votingAuthority></infoTable></informationTable>
