Crustacean Finin of South Afrn-". 179 



RHACHOTROPIS PALPORUM Stebbing. 



1908. Rhachotropis palporum Stebbiug, Jouru. Liun. Soc. Loud. Zool. 



vol. 30. p. 194, pi. 28. 



The male differs from Stebbing's specimen as follows : The grooves 

 between the head and 1st peraeou segment and between the 1st and 

 2nd peraeou segments are deeper, side-plates 5 and 6 rather more 

 deeply bilobed, 7 not so acute posteriorly, the teeth 011 pleon segments 

 less strong, and on pleon segments 2 and 3 the dorsal tooth is larger 

 than the others, 3rd joint of the palp of maxillipeds more oval. 



Length: 12 mm. 



Colour: In spirit pale yellowish. 



Locality: Cape Point NE. by E. \- E., distant 38 miles. 755 

 fathoms. 1 <$. 23/6/03; Cape Point E. by K, distant 29 miles. 

 250-300 fathoms. 1 ? . 27/8/03. s.s. " Pieter Faure." (S.A.M. 

 Nos. A224and A2773). 



Geogr. Distribution: 59 36' N. 7 C W. 400 metres (Stebbing). 



RHACHOTROPIS GRIMALDII Chevreux. 



1887. Tritopsis grimaldii Chevreux, Bull. Soc. Zool. Fr. vol. 12, 



p. 571 (?). 



1888. Khachotropis Stebbing, Challeng. Rep. vol. 29, p. 1641. 

 1896. Eachotropis elegans Bonnier, Ann. Univ. Lyon. vol. 26, p. 658, 



pi. 39, fig. 4 (<?) 

 1900. ,, grimaldii Chevereux, Res. Camp. Monaco, vol. 16, 



p. 68, pi. 9, fig. 1 ( ? ). 



1906. Ehachotropis ,, + elegans Stebbing, Das Tierreich, 21, 



pp. 351, 729. 



Rostrum not extending to half 1st joint of 1st antenna, antero- 

 lateral angles of head obtusely projecting. Eyes not visible. Peraeou 

 not carinate, but posterior portion of each segment slightly swollen, 

 the 7th segment in $ with a small median tooth. Side-plate 1 pro- 

 duced forwards as far as antero -lateral angle of head, apex rounded, 

 side-plates 2-4 quadrangular, anterior margin of 4 rounded, posterior 

 margin slightly emarginate, 5 and 6 bilobed, hind lobe the deeper, 

 7 half as long again as deep, deepest anteriorly, thence narrowing, 

 postero-lateral angle quadrate, the teeth and serrations on the posterior 

 angles of all the side-plates very obscure. Pleon segments 1-3 tri- 

 carinate, the subdorsal cariuae obscure, all the carinae endiug in acute 

 but scarcely upturned teeth, the median one on 2nd segment being 



