504 



ritoi ■/■:/•;/>/ \as of the xatioxal MU&EVM. vol. xxxv. 



with a minute spine and seta on either side of the sallow emargina- 

 tion. 

 Length. — 10 mm. 



Fin. 1."..— K< U:< >< ; A MEUAI.ors. lib.;. THIRD SEGMENT OP THE ABDOMEN*, dbi, FOURTH SEG- 

 MENT OF THE ABDOMEN; I. Did, LEFT MANDIBLE; i/lh, FIRST GNATHOPOD ; gn 2 , SECOND 



gnathopod; mxi, first maxilla; mxs, second maxilla; mxp, maxilliped; £, telson ; 



/'/:. XHIBD DBOPOD. 



Locality. — Described from a single female carrying ova; Station 

 4257, vicinity of Funter Bay, Lynn Canal, Alaska. 350 fathoms. 

 Type.— Qui. No. 38539, U.S.N. M. 



Genus ARUGA,« new. 



Side plates deep. Antennae short : secondary flagellum of first pair 

 well developed; peduncle of second pair with none of the joints 

 expanded. Upper lip produced forward into a rounded keel-like 



a No etymology. 



