THE SCHIZOPODA. 



105 



densely setose in tlie adnlt ; internal flasjellum 

 very long, the proximal joints remarkably setose. 

 Antennal peduncle nearly as long as antennular 

 peduncle, its last joint shorter than the preceding. 

 Antennal scale slightly curved, about hve times as 

 long as broad, extending for about one-seventh of 

 its length beyond the antennular peduncle ; external 

 margin entire, terminating in a A^ery feeble spine ; 

 apex obliqviely truncate, extending beyond the spine. 

 Thoracic limbs in the male with well-developed 

 exopodites, the basal part terminating in a minute 

 spine ; flagelliform part with eleven joints, and, iu 

 the last three pairs of limbs, of about five-sixths 

 of the length of the carapace. Pleon somewhat 

 narrower than the carapace, with the first five seg- 

 ments subequal, the sixth considerably longer than 

 the two preceding segments. Telson short, its lateral 

 margins slightly arcuate and unarmed ; apex slightly 

 arcuate, its exterior angles armed with two closely- 

 set short slender spines ; median setae not closely 

 apposed, somewhat less distant from each other 

 than from the angular spines. Outer iiropods, 

 including basal articulation, about once and a half 

 times as long as the sixth segment of pleon ; narrow, 

 with the apices obliquely truncate and hardly at 

 all rounded ; settE somewhat widely separate, about 

 eleven on the outer margin. Inner uropods con- 

 siderably shorter than outer ; otocyst very large, 

 extending to or beyond the extremity of the telson ; 

 distal part narrow, the apex rounded ; no spines on 

 the inferior surface ; no denticulations on the inner 

 edge. 



Length of adult male and female 9 mm. 



E. Fowleri is very closely allied to E. tenuis, 

 described by Sars from the S. Pacific off Chili. It 

 is, however, readily distinguished by three charac- 

 ters : — (i.) the eyes have no dark pigment except at 

 the anterior and postero-lateral functional parts; 

 (ii.) the rostrum, if it can so be called, is much more 

 obtuse in E. Fowleri ; (iii.) the telson has two dis- 

 tinct, if minute, spines at each angle, and the 

 setae arise at a considerable distance from each 

 other. 



m 



Euchatomera Fowleri, Holt & Tatt. 

 (The armature of the telson is not shown.) 



18* 



