61 



specimens) dark reddish In-own. Superior antennae in female about the length 

 of the cephalon and the 1st segment of mesosome combined. ila gel him scarcely 

 longer than the peduncle, 8-articulate, 1st joint as long as the :-J succeeding 

 ones combined, accessory appendage half the length of the flagellum, 5-artim- 

 late. Inferior antennae in male fully as long as the body, with the pedun- 

 cular joints considerably expanded. Epistomal plate narrow linguiform, and 

 considerably projecting in front. Anterior gnathopoda very short ;m<l stout, 

 propodos about the length of the carpal and meral joints combined, distinctly 

 tapering distally. Posterior gnathopoda with the propodos very narrow, 

 oblong linear, upper edge provided with unusually coarse spiniform bristles, 

 arranged in several transverse rows. Last pair of uropoda in female with 

 the inner ramus shorter than the basal joint of the outer, simple mueroniform, 

 without any lateral denticles. Telson in female oblong quadrangular, scarcely 

 tapering distally, with 2 pairs of dorsal denticles, posterior incision very 

 shallow and broad; in male considerably more elongate, with the posterior 

 incision much narrower. Body cream-coloured, each segment of the mesosome 

 having a small reddish pigmentary speck at the infero-posterior corners. 

 Length of female 7 mm., of male 8 mm. 



Remarks. I think there can be little doubt that the present form 

 is that described by Sp. Bate as Anonyx Edwardsii. That, however, the 

 species so named by Kroyer is very different and even belongs to another 

 genus, viz., Oncsimns, was first pointed out by Boeck. But the latter author 

 was certainly wrong in identifying the British form with his Orr/iontn/i 

 Sf.rmins, and for this reason I found it right in my 0versigt to give the 

 species a new name, proposing for it that of 0. Sate/. I am now, however, 

 somewhat uncertain whether the species shortly characterised by Norman in 

 his Shetland Report as Anonyx metanophfhalmus may not be this species, 

 in which case the specific denomination proposed by that author ought to he 

 retained. The species in question is easily known from the other forms of this 

 genus, not only by its comparatively small size, but by the less robust form 

 of the body, and by the shallow incision of the telson in the female. 

 The pigment of the eyes is in living specimens dark reddish brown 

 (somewhat lighter in young), but becomes in specimens preserved in spirit 

 almost black. 



Occurrence. I have only met with this form in a few localities ulf 

 the. south and west coast of Norway. In one of these localities (Fuller,, it 

 occurred rather plentifully at a depth of 2040 fathoms among Ascidia> and 

 Hydroidse. 



Distribution. British Isles, Shetland ('?), coast of France (Chevreux). 



9 Crustacea. 



