General Catalogue of South African Crustacea. 467 



The host above-mentioned should be called Jctsus lalandii 

 (Milne-Edwards). The species has been sent by Dr. Gilchrist 

 from two gatherings : No. 88, off Port Elizabeth, depth between 

 24 and 27 m. ; and No. 89, between Bird Island and the main- 

 land, 18-29 m. depth. The short arm or second joint of the 

 second gnathopods has the front margin sculptured, forming 

 about sixteen decurrent rounded teeth ; the proximal process 

 of the sixth joint in the hinder peraeopods carries a pair of 

 short distally serrate clasping spines. 



Caprella falsa, Mayer, 

 1903. Caprella falsa, Mayer, Siboga Exp., pp. 75, 101, pi. 4, fig. 15. 

 From False Bay. This species seems scarcely distinguish- 

 able from the supposed abnormal form of C. cicur, figured by 

 Mayer on his pi. 4, fig. 6, so far as can be judged by a com- 

 parison of that figure with fig. 15, representing C. falsa on the 

 same plate. 



* Caprella l^vipes, Mayer. 

 1903. Cap-ella Icevipes, Mayer, Siboga Exp., pp. 74, 108, pi. 5, fig. 2, 

 pi. 8, figs. 14-16. 

 From the Stockholm Museum, collected by Vahlberg at 

 Port Natal; numerous specimens found by W. F. Purcell, 

 "chnging to the back of an Asteroid starfish," in Kalk Bay, 

 part of False Bay. 



=■■ Caprella tbiodous, n. sp. 

 Plate XLVIII.B. 



1910. Caprella trioclous, n. sp., S.A. Crustacea, pt. 5. 



This species shows a great general resemblance to Dr. 

 Mayer's C. Imvipes, but appears to be clearly distinguished 

 from it by the following differences. There is no frontal 

 process ; the flagellum of the first antennae is twelve-jointed, 

 whereas in G. IcBvipes Dr. Mayer, who had very many speci- 

 mens for comparison, states that it is eight-jointed in both 

 sexes ; here the second antennae do not nearly reach the end 

 of the peduncle of the first, instead of reaching beyond it ; the 

 elongate hand of the second gnathopods, which as in the other 

 species has the hind margin distally divided into three teeth, 

 •differs by having the front margin distally angled instead of 

 rounded ; lastly, of the hinder peraeopods at least the third 

 and fourth pairs have the process of the sixth joint armed 



