60 . 



mnch nearer the base than does the latter. First pair of maxillae with the 

 masticatory lobe almost transversely truncated at the tip and armed with 

 strong denticulated spines, the basal lobe elongated, tapering, with 2 small 

 apical setae; palp normal. Second pair of maxillae with both lobes elongated 

 and narrow, setous at the tip only. Maxillipeds with the masticatory lobe very 

 large, oval, slightly crenulated on the inner edge, palp comparatively small. 

 Anterior gnathopoda short and stout, subcheliform ; propodos truncated at the 

 tip, with a distinctly defined palmar edge ; dactylus short and curved. Posterior 

 gnathopoda slender, propodos slightly produced beneath the minute dactylus. 

 Pereiopoda comparatively short, basal joint of the 3 posterior pairs very 

 large and laminar. Last pair of uropoda in female scarcely reaching beyond 

 the preceding pair, rami partly denticulated at the edges; in male much 

 larger, with the inner edge of both rami provided with plumose setae. Telson 

 comparatively small, not reaching beyond the basal part of the last pair of 

 uropoda, and more or less deeply incised posteriorly. 



EemarJiS. The present genus has been established by Boeck in 

 order to include some species formerly referred to the genus Anonyx but 

 differing materially in the structure of the oral parts. The genus would 

 seem to include numerous species from different parts of the Oceans. Besides 

 the 5 northern species here described, 3 new species have been recorded by 

 the Rev. Mr. Stebbing from the Challenger Expedition, 2 of which, however, 

 may more properly be referred to the genus Orchomenopsis to be described in 

 the sequel; and of the several exotic species referred by earlier authors 

 to the genus Anonyx some may perhaps on closer examination be found to 

 belong to the present genus. 



18. Orchomene Batei, G-. 0. Sars. 



(PI. 22). 



Orcliomene Batei, G. O. Sars, Oversigt af Norges Crustaeeer, I, p. 81. 

 Syn: Anonyx Edwardsii, >Sp. Bate (not Kroyer). 

 ? Anonyx melanophthalmus, Norman. 



Body more slender than in the other species, especially in the male. 

 Cephalon with the lateral corners rather projecting, in female broadly rounded, 

 in male narrow linguiform. Coxal plates of moderate size, the 4 anterior 

 pairs about twice as deep as the body, 5th pair broader than they are deep. 

 Last pair of epimeral plates of metasome nearly rectangular, posterior edge 

 irregularly and minutely crenulated. First segment of urosome with a slight 

 dorsal indentation at the base, more distinct in the male. Eyes oval or 

 slightly reniform, much larger in male than in female, pigment (in adult 



