ISOPODS OF NORTH AMERICA. 



571 



Depth. 5 to 70 fathoms. 



Body of female oval, somewhat asymmetrical. Length, 8 mm. 

 Width, 7 mm. 



FlG. 637. BOPYROIDES HIPPOLYTES. SIXTH LEG OF SPECIMENS FOUND ON: a, SPIRONTOCARIS POLARIS 

 FROM WEST OF PRIBILOF ISLAND. X 52. 6, ON SPIRONTOCARIS SUCKLEYI FROM ADMIRALTY INLET, 

 VICINITY QF PORT TOWNSEND. X 41. C, ON SPIRONTOCARIS SUCKLEYI FROM AFOGNAK BAY, AFOG- 



NAK ISLAND, x 52. d, ON SPIRONTOCARIS SUCKLEYI FROM ADMIRALTY INLET, VICINITY OF PORT 

 TOWNSEND. x 52. e 1 , e 2 , e 3 , ON SPIROXTOCARIS SUCKLEYI FROM ALITAK BAY, KADIAK ISLAND. 

 /, ON SPIRONTOCARIS HERDMANI FROM QUEEN CHARLOTTE ISLAND, OFF FORT RUPERT, VANCOUVER 

 ISLAND, BRITISH COLUMBIA, x 77i. g l , g* 2 , g 9 , g 4 , g 5 , ON PANDALUS JORDANI FROM QUEEN CHAR- 

 LOTTE ISLAND, OFF FORT RUPERT, VANCOUVER ISLAND, BRITISH COLUMBIA. 



Head a little wider than long, 2 mm. : 2 mm., with the anterior 

 margin of the frontal border almost straight. The posterior margin 

 is rounded. The frontal border extends laterally on either side of the 



