642 ViNNIE EeAM StOUT, 



tlie very deep g-roove. Pereiopod 1, long- and very slender, the 

 second Joint bnt very sliglitly produced; fourtli Joint somewliat pro- 

 duced. Pereiopod 2 siniilar, slightly sliorter. Pereiopods 3 — 5 suc- 

 cessively longer; the second Joint produced into a plate and pro- 

 duced down behind over the third Joint. Pleopods well developed. 

 Uropod 1, peduncle long-er than the slender, subequal rami. Uropod 2 

 shorter than 1 ; peduncle subequal to the subequal rami. Uropod 3, 

 rami elongate, strongly spinöse, inner very small. Telson short, cleft 

 to the base, each apex with two small setae. 



Color, violet g'ray, mottled; some of the specimens with the 

 margins of the segments marked with black. 



L. 5 — 8 mm. 



ünder rocks between tides. Laguna Beach, Calif. 



Genus FimhrieUa n. {/. 



Body rather thick. Head not i'ostrate. Side-plates 1—4 of 

 moderate depth, the fifth about one-half the depth of the fourth, 

 Pleon Segments 4 and 5 subdorsally toothed. Antennae 1 and 2 

 nearly equal in length; antenna 1 with peduncle elongate, the second 

 Joint the longest, assessory flagellum well developed. Upper lip 

 rounded symmetrical]}^ Lower lip with inner plates. Mandible 

 with palp large, second Joint slightly longer than the third. Maxiila 1, 

 inner plate with numerous small setae, outer plate with ten spines. 

 Maxilla 2, inner plate fringed on inner margin. Maxillipeds, inner 

 plates without the usual three spine teeth. Gnathopods 1 and 2 

 subchelate, differing in male and female. Pereiopods slender; 1 

 and 2 with second Joint not produced; 3 — 5 successively longer, the 

 second Joint produced into a plate. Uropod 3 extending beyond the 

 rest, rami subequal. Telson partly cleft. 



This genus difters from Maera in having a rather thick body, 

 pleon Segments 4 and 5 subdorsally toothed, antennae 1 and 2 of 

 nearly equal length, the inner plate of maxilla 1 with numerous 

 small setae, and the inner plate of maxilla 2 fringed on the inner 

 margin. 



Finibrlella robusta n. sp. 



Side lobes of head produced to small, acute processes. Eyes 

 large, black, long. Antenna 1, peduncle elongate, the second Joint 

 the longest and the iirst and the third nearly equal in length; 



