Cooper, Martha R. <br/><br/>
New and little-known crayfishes of the virilis section of genus Orconectes (Decapoda  Cambaridae) from the Southeastern United States / 
Martha R. Cooper and Horton H. Hobbs. 
 - Washington :  Smithsonian Institution Press,  1980. 
 - 44 p. :  ill. ;  26 cm. 
 - Smithsonian contributions to zoology ;  no.320 .
<br/><br/><label>ISBN: </label>QL444.M33 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Orconectes--Classification.<br/>Crustacea--Classification.<br/>Crustacea z United States--Classification.