10 Annals of the South African Museum. 



In the first antennae the proximal portion of the first joint is 

 much wider than the distal ; of the two slender flagella one is rather 

 move than thrice, the other more than four times as long as the 

 peduncle. In the second antennae the penultimate joint of the 

 peduncle is twice as long as the last joint, but only a little longer 

 than the ante-penultimate joint ; the flagellum is about twice as 

 long as the longer one in the first pair. 



In the palp of the mandibles the third joint is the longest. The 

 long two-jointed palp of the first maxillae has the first joint straight, 

 the second sinuous. The third maxillipeds have an apical tooth on 

 the first joint and also on the second, the remaining joints are beset 

 with numbers of very long spine-like setae ; the third joint has a 

 slightly oblique surface row of 8 or 9 teeth, and the following joint 

 has a small sub-terminal tooth as in C. alcocki ; the seventh joint 

 has a close brush of serrate spines in addition to its long setae. 



The fixed finger of the first peraeopods has its inner margin 

 crenulate, met before the centre by a prominence of the movable 

 finger. The confronting margins of both fingers in the second 

 peraeopods are finely denticulate. 



The first pleopods resemble the petasmata of the Penaeids, but 

 are described and figured by Alcock as common to both sexes. The 

 remarkable second pleopod of the female found in C. alcocki is not 

 represented in our specimens. They attain a length of 38 mm. 



Locality. Cape Castle, E. ^ N. 9 miles (near Saldanha Bay, 

 Cape Colony) ; depth 89 fathoms. A 1549. 



The specific name is given to mark my sense of the excellent 

 service which Mr. K. H. Barnard is rendering to carcinology at the 

 South African Museum under the auspices of Dr. Peringuey. 



TKIBE EBYONIDEA. 



1901. Eryonidea, Alcock, Catal. Indian Deep-sea Macrura, p. 151. 

 1910. Stebbing, Ann. S. African Mus., vol. 6, p. 377. 



FAMILY EKYONIDAE. 



1852. Eryonidae, Dana, U.S. Expl. Exp., vol. 13, p. 515. 

 1901. ,, Alcock, Catal. Indian Deep-sea Macrura, p. 164 



(with synonymy). 



