46 Bulletin American Museum of Natural History [Vol. LII 



2 specimens. Agua Verde Bay, Gulf of California, electric light; 15 

 specimens. 



This is a very widely distributed species and was reported off Point 

 Loma, southern California, by S. J. Holmes in 1908. 



Lycaeidae 

 Lycsea bajensis, new species 



Localities. — San Josef Island, Gulf of California, electric light; 23 specimens (1 

 c? type). Cape San Lucas, Lower California, ship's anchorage, electric light; 4 

 specimens. Cape San Lucas, Lower California, ship's anchorage, electric light; 

 March 24, 1911, 1 specimen. Carmen Island, southeast side, Gulf of California, 

 electric light; 3 specimens. 



Male. — Head globular. Antenna 1, upper edge of first joint of flagellum nearly 

 straight, there being a very shallow angle near the peduncle, the upper distal ex- 

 tremity of this joint forming nearly a right angle, second joint longer than third or 

 fourth, which are subequal. Antenna 2 as in Stebbing's figure of L. vincenti, except 

 that the fifth joint of the peduncle is very slightly shorter than fourth and the flagellum 

 reaches very nearly to the end of the fifth joint. Maxillipeds as in L. vincenti. Mandib- 

 ular palp with third joint slightly longer than second. Gnathopods 1 and 2 as in L. 

 vincenti, but the lower distal angle of fifth joint not so sharply produced. Perseopod 

 2 as in L. vincenti except the rear edge of sixth joint is without minute teeth. Perseo- 

 pod 3 much as in L. vincenti, but with the hind margin of second joint more convex. 

 Perseopod 4, front margin of second joint having a decided hump in the middle. 

 Perseopod 5, second joint, strikingly widest through the middle, hind margin not 

 evenly convex, succeeding joints and dactyl as in L. vincenti. The posterior lateral 

 corners of abdominal segments 1-3 evenly rounded. The rami of all the uropods are 

 straight and their edges finely pectinate except the outer edge of the outer ramus of 

 uropods 2 and 3. Telson with sides evenly convergent, except at the basal fourth, 

 where they are constricted, and about parallel. 



Length. — 7 mm. 



Female. — Thorax quite tumid, narrowing suddenly to the slender abdomen. 

 Head not so long as in male, but just as deep. Antenna 1, first joint of flagellum not 

 expanded, second joint short, third joint a little longer than second. Gnathopod 1, 

 as in male, except there are no fine teeth on the fifth or sixth joints and the lower 

 distal corner of the fifth joint is not so sharply produced. Gnathopod 2 as in male, 

 but without the fine teeth on fiffh or sixth joints. Perseopods as in male. Posterior 

 lateral corners of abdominal segments 1-3 as in male. Uropods as in male. Telson 

 with sides nearly straight and evenly convergent, not constricted at base. 



Length. — 7 mm. 



Parascelidse 

 Parascelus zebu Stebbing 

 Parascelus zebu Stebbing, 1888, 'Challenger Amphipoda,' p. 1496, PI. clxxxv. 

 Carmen Island, southeast side, Gulf of California, electric light; 

 2 specimens. 



