188 U.S. NATIONAL MUSEUM BULLETIN 260 



each epimeron with three or more stout ventral spines; pleon con- 

 spicuously setose; uropod 1 with medium-sized lateral process on 

 penduncle, uropod 2 with small process; telson cleft slightly more 

 than halfway. 



Male. — ^Accessory flagellum longer than that of female, basal por- 

 tion of primary flagellmn unsegmented ; tooth of pleonite 5 larger than 

 in female. 



HoLOTYPE. — AHF No. 6125, ovigerous female, 7.4 mm. 



Type-locality.— Station 7358, 27°35'45" N, 115°08'30" W, 1095- 

 1205 m, Apr. 21, 1961. 



Material.— Stations 7234 (8), 7358 (1). 



Relationship. — Syrrhoites toalkeri Bonnier (1896), in view of its 

 dorsal sculpture, pleonal epimera, telson, head, coxae, and pereopods 

 3-5, may be the species most closely related to S. trux. Syrrhoites trux 

 differs from S. loalkeri in the slightly quadrate [not rounded] postero- 

 ventral corner of pleonal epimeron 2, the slight tooth of the postero- 

 ventral corner of epimeron 1, and the absence of any dorsal teeth on 

 pereonites 5-7. The two species are the most closely related pair in 

 the genus and may belong together as subspecies. Syrrhoites walJceri 

 was described from the north Atlantic Ocean in a depth of 950 meters. 



Syrrhoites terceris J. L. Barnard (1964b), of Pacific Panama, is a 

 near relative of S. trux^ but the latter differs from S. terceris in the 

 absence of distinct pereonal teeth, the larger dorsal teeth of the pleon, 

 the stouter gnathopod 1, the different shape of the pleonal epimera, and 

 the narrower article 2 of pereopod 5. 



The dorsal portions of the pereonites of S. trux interlock together so 

 that no posterodorsal margins are freely movable. Syrrhoites trux 

 is especially characterized by the nonarticulate spinelike cusp on the 

 outer plates of the maxillipeds. 



Distribution. — Middle Baja California, 842-1095 m. 



Vitjazianidae 



Vetnana J. L. Barnard 



Vemana lemuresa, new species 



Figure 92 



Diagnosis. — Pleonal epimeron 3 produced into large tooth at poster- 

 oven tral corner ; coxa 1 acutely produced anteriorly ; gnathopod 1 with 

 sinuous posterior margin on article 6 representing condition of near 

 subchelateness, with setal armament denoting palmar region; coxae 

 4-7 smaller than in other known species of the genus and with large 



