of the ^British Sessile-eyed Crustacea.^ 467 



Sulcator arenarius (Bate) ,= Haustorius arenart us (Slabber). 

 Urotho'e Bairdii (Bate). Six specimens. 



The species of this jxcuns were compared with the " Mono- 

 graph " of the Kcv. T. H. R. Stcbbiug in Trans. Zool. Soc. 

 voh xiii. part 1 (1891). Jiulgini^ from the form of the plcon- 

 BPgments and the second uropods, the specimens named as 

 above appear to be U. marinus (Bate), as suggested by 

 ]^Ir. Stebbing. Length about 6 raillim. 



Urotho'e hrevicornis (Bate). Six specimens. 



All the larger specimens are females of U. marinus ; the 

 smallest may be U. brevicorne (Stebbing) from the shortness 

 of the peduncle of the second uropods, which has two spines 

 on it. All the specimens are similarly marked witii dark red 

 spots, which suggests the probability that the small specimen 

 may be the young of U. marinus. Its length is 3| millim. 



Urotho'e marinus (Bate). One imperfect specimen. 



The rami of the first and second uropods very decidedly 

 curved, the peduncle of the second almost as long as that of 

 the first. 



Urotho'e elegans (Bate) . 



Tube marked in Bate's writing " Unique," and, in a note 

 on the jar, " Damaged or destroyed by the spirit." Only 

 small fragments remain, including the tail. 



Sars only describes one species of this genus, viz. Urotho'e 

 norvegica (Boeck), which appears hardly distinguishable from 

 U. elegans (Bate), as described by Stebbing ; the latter is the 

 older name. 



Lilljeborgia shetlandica (Bate & Westw.) is not in the 

 collection, but is no doubt, as suggested by Norman, Cheiro- 

 cratus Sundevalli (ilathke). 



Phaedra antiqua (Bate). Not in the collection. 

 Phadra Kinahani (Bate). Not in the collection. 

 Now Lilljeborgia Kinahani (Bate). 



Iphimedia obesa (Rathke). Two specimens. 



This, as figured, looks more like /. vnnuta (Sars) in the 

 form of the third plcon-segment. The specimens in the tube, 

 however, are both /. obesa. 



