276 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Inner antenna. Peduncles about half the length of 

 the antennal scale. 



Outer antennce. Scale short and broad, with the inner 

 margin thickened, and a strong central rib. Peduncles 

 reaching nearly to the end of the scale, the last joint 

 longer than the others together. 



Outer maxillipes reaching beyond the end of the 

 antennal scales. 



First pair of feet as long as the second, reaching 

 beyond the end of the antennal scales. 



Second and third pair of feet sub-equal. Abdomen 

 tapering abruptly from the 4th segment ; 6th segment 

 darker coloured than the others ; a dark transverse band 

 on the caudal appendages. 



Near C. munitus, Dana, but differs in its much smaller 

 size and in the second carina from the median terminating 

 in a tooth half way to the orbital margin, while in C. 

 munitus it reaches the margin and has no tooth. 



Family Hippolytid^. 



Genus Spirontocaris * Sp. Bate, 1888. 

 Spirontocaris gramlandica (Fabr.). 



Hippolyte aculeata (M. Edw.). 

 H. armata, Owen. 

 H, cornuta, Owen. 



One specimen. Length 35 mm. 



I have seen Owen's type specimens from Kamtschatka 

 at the Museum of the Royal College of Surgeons. They 

 are three or four times as large as Dr. Herdman's 

 specimen, but agree in other respects. 



Spirontocaris brevirostris (Dana). 

 Several specimens. Length 50 mm. 



* I use this genus in respect to the 7-jointed carpus of the second pair of 

 legs only, without reference to other characters. 



