South African Crustacea. 69 



46 joints, most of them broader than long. The second joint of the 

 mandibular palp had only four spines. The first and second 

 peraeopods were without the fringe of setae. The third uropods 

 showed little armature. But the telson was distinguished by a 

 small tooth, produced backward, at the outer angle of each lobe, 

 while in the more mature specimen the outer angle does not reach 

 the rest of the apical margin. 



Locality. Dredged between Bird Island and the mainland in 

 4-16 fathoms. 



FAMILY AMPELISCID^B. 



GEN. AMPELISCA, Kroyer. 



1842. Ampelisca, Kroyer, Naturhist. Tidsskr., vol. iv., p. 154. 

 1906. Ampelisca, Stebbing, Das Tierreich, Amphipoda, pp. 98, 721. 



AMPELISCA CHILTONI, Stebbing. 



1888. Ampelisca chiltoni, Stebbing, Challenger Amphipoda, Eeports, 

 vol. xxix., p. 1042, pi. 103. 



1905. Ampelisca chiltoni, Chilton, Trans. N.Z. Inst., vol. xxxviii., 



p. 267. 



1906. Ampelisca chiltoni, Stebbing, Das Tierreich, Amphipoda, p. 102. 

 It should be noticed that this species bears great resemblance 



to the large Arctic form, A. eschrichtii, Kroyer, from which it is 

 distinguished by having the postero-lateral angles of the third pleon 

 segment subquadrate and minutely produced, instead of strongly 

 produced and insinuate, and by having dorsal spinules on the telson, 

 which are wanting in the northern form. A. fusca is another closely 

 allied species, but with the first antennae more strongly developed, 

 and the hind lobe of the second joint in the fifth peraeopods narrower 

 and more strongly produced downwards than in A. chiltoni. 



A specimen measuring 23 mm. from front of head to apex of 

 telson, had first antennae 7 mm. long and second antennae 16 mm. 

 This was a female carrying eggs, some of which were brown, others 

 yellow. The back was sharply carinate from the sixth peraeon 

 segment to the fourth of the pleon, the latter segment having a 

 strongly sinuous medio-dorsal outline. The branchial vesicles are 

 pleated. The lenses of the eyes retain for long a scarlet rim in 

 methylated spirit. 



Locality. The specimen above described was taken in False Bay, 

 Paulsberg, W.N.W. 1 mile; depth 24 fathoms. Another specimen, 



