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PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXXV. 



denticulate spines at distal end ; palp with eight short spines on distal 

 margin, the inner and the outer one more slender than the others. 

 Inner plate of maxillipeds with three short stout spines at distal end; 

 outer plate with about twelve stout spines on inner margin. First 

 gnathopods with nearly rectangular hand; palm transverse. Second 

 gnathopods with the hand elongate, somewhat narrowed distally; 

 palm short, transverse. Infero-lateral angle of third abdominal seg- 

 ment acute. Fourth segment with a large dorsal, backwardly directed 

 tooth. Uropods with narrow rami, those of the third pair minutely 

 pectinate along one side and armed with two or three spines each. 

 Telson cleft nearly to the base, armed with a pair of small spines at 

 the tip of each lobe and a spine on either side near the outer margin. 



Length. — 6 mm. 



Locality. — A single specimen from Station 4399, off San Diego, 

 California, 245-285 fathoms. 



Type.— Cat No. 38535, U.S.N.M. 



TRYPHOSA CCECA, new species. 



Eyes absent, or at least not visible in preserved material. Lateral 

 angles of the head projecting and acute. First antenna? about as long 



Fin. 7. TBYPHOSA CCECA. ",. FIRS! ANTENNA; "'<■,. THIRD SEGMENT OF THE ABDOMEN; 

 (/'/,. FOURTH SEGMENT OF THE ABDOMEN; mil, MANDIBLE; m.rii. M \x I I.I.I PED ; lh. FIRST 



P] R 1 m|-, ,|. 



as the head and two following segments, the first joint twice longer 

 than the next two. Second antenna' fully twice the length of the 



