of the ^British Sessile-eyed Crustacea.^ 467 



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

 Urothoe Bairdii (Bate). Six specimens. 



The species of this gen as were compared with the '' Mono- 

 graph '^ of the Rev. T. R. R. Stebbing in Trans. Zool. Soc. 

 vol. xiii. part 1 (1891). Judging from the form of the pleon- 

 segments and the second uropods, the specimens named as 

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

 Mr. Stebbing. Length about 6 millira. 



Urothoe 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 with dark red 

 spots, which suggests the probability that the small specimen 

 may be the young of U. marinus. Its length is '6h millim. 



Urothoe 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. 



U^'Othoe 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. Urothoe 

 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 (Rathke). 



Phcedra antiqua (Bate). Not in the collection. 

 Phcedra Kinahani (Bate). Not in the collection. 

 Now Lilljeborgia Kinahani (Bate) . 



Iphimedia obesa (Rathke). Two specimens. 



This, as figured, looks more like I. minuta (Sars) in the 

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

 however, are both /. obesa. 



