Crustacean Fauna of South Africa. LIZA 
£© 
RHACHOTROPIS PALPORUM Stebbing. 
1908. Rhachotropis palporum Stebbing, Journ. Linn. Soc. Lond. Zool. 
vol. 30. p. 194, pl. 28. 
The male differs from Stebbing’s specimen as follows: The grooves 
between the head and Ist peraeon segment and between the Ist and 
2nd peraeon segments are deeper, side-plates 5 and 6 rather more 
deeply bilobed, 7 not so acute posteriorly, the teeth on 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 N., distant 29 miles. 
250-300 fathoms. 19. 27/8/03. s.s. ‘“ Pieter Faure.” (S.A.M. 
Nos. A224 and A2773). 
Geogr. Distribution: 59° 36' N. 7° W. 400 metres (Stebbing). 
RHACHOTROPIS GRIMALDII Chevreux. 
1887. Tritopsis grimaldii Chevreux, Bull. Soc. Zool. Fr. vol. 12, 
Doel G2): 
1888. Rhachotropis _,, Stebbing, Challeng. Rep. vol. 29, p. 1641. 
1896. Rachotropis elegans Bonnier, Aun. Univ. Lyon. vol. 26, p. 658, 
pl. 39, fig. 4 (4). 
1900. - grimaldii Chevereux, Rés. Camp. Monaco, vol. 16, 
POS) pla gy tiea Cos): 
1906. Rhachotropis _,, + elegans Stebbing, Das Tierreich, 21, 
pp. 351, 729. 
Rostrum not extending to half Ist joint of Ist antenna, antero- 
lateral angles of head obtusely projecting. Eyes not visible. Peraeon 
not carinate, but posterior portion of each segment slightly swollen, 
the 7th segment in g 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 carinae obscure, all the carinae ending in acute 
but scarcely upturned teeth, the median one on 2nd segment being 
