ISOPODS OF NORTH AMERICA. 



571 



Depth.— ^ to 70 fathoms. 



Body of feuuilc oval, somewhat asymineti-ical. Length, S mm. 

 Width, 7 mm. 



Fig. 637.— Boi'YuoiDEs hippoi.ytes. Sixth le(3 f)F .specimens found ox: a, Spirontoc^ris poi..\ris 



FROM WEST or I'RIBII.OF ISLAND. X 52. h, OX SPIRONTOt'ARIS SUCKI.EYI FRO.M AUJIIRAI.TY IXI.KT, 



VICINITY OF Port Towxsend. x 41. c, Ox Spirontocaris si'ckleyi from Afogxak Bay, Afoc;- 

 NAK Island, x 52. d. On Spirontocaris suckleyi from Admiralty Inlet, vicinity* of Port 

 TowxsEXD. X 52. el, C-, e', On Spirontocaris suckleyi from Alitak Bay, Kadiak Island. 

 /, On Spirontocaris herdmani from Queen Charlotte Island, off Fort Rupert, Vancouver 

 Island, British Columbia, x 77^. fir', f/-, (7'*, (f, (f. On Pandalus jordani from Queen Char- 

 lotte Island, off Fort Rupert, Vancouver Island, British Columbia. 



Head a little wider than long. 2 nun. : '2i^ nnn., with the anterior 

 margin of the frontal border almost straight. The posterior margin 

 is romided. The frontal border extends laterallv on either side of the 



