74 Annals of the South African Museum. 



palm of the second gnathopod carries a long sharp tooth at its 

 hinder angle, and a second tooth, stout and short, at its middle. 

 In the later account, which is fortified by a figure, this palm is 

 described as deeply excavate, forming with the hind margin a sharp, 

 very salient angle, armed with a long spine. Nothing is said about 

 a second median tooth. It is with this later account that our 

 specimen agrees. A distinguishing feature of the species is the 

 great length of the sixth joint in the long fourth peraeopods. In 

 the fifth peraeopods the second joint has the front margin protruding 

 below and there furnished with a few long plumose setae, and behind 

 the broad expansion of this joint is crenulate with great minuteness. 

 These characters it shares to some extent with H. abyssi, Sars, but 

 in that species the postero-lateral angles of the third pleon segment 

 are rounded, while here they are produced into a strong tooth. 

 According to Chevreux the inner branch of the third uropods is 

 almost as long as the two- jointed outer branch. In the South 

 African specimen it is in fact quite as long. 



Length of specimen, 5 mm. 



Locality. Table Mountain, E. 41 miles ; depth, 245 fathoms ; 

 bottom green sand. 



GEN. PONTHAEPINIA, Stebbing. 



1897. Pontliarpinia, Stebbing, Trans. Linn. Soc. London, Ser. 2, 



vol. vii., p. 32. 

 1906. Pontharpinia, Stebbing, Das Tierreich, Amphipoda, p. 145. 



Among the characters of this genus given in Das Tierreich I have 

 included the following : Hood obtuse, eyes distinct, palp of mandible 

 slender, with third joint shorter than second, first and second 

 gnathopods similar. The new species which I now propose to 

 include in the genus has the hood produced to an extremely acute 

 apex, uncinately deflexed ; the mandibular palp is not specially 

 slender and its third joint is equal in length to the second ; also the 

 first and second gnathopods (in the female) are dissimilar. The 

 species Phoxus uncirostratus, Giles, referred by Delia Valle and 

 A. 0. Walker respectively to Phoxocephalus and Leptophoxus, is 

 set down in Das Tierreich as an uncertain member of Pontharpinia. 

 Phoxus geniculatus, Stimpson, ought, as I now think, to have 

 received the same treatment. Giles says concerning his species : 

 " although I carefully dissected the head of one specimen, I could 

 make out no trace of eyes." Stimpson attributes " eyes white " 

 to his species, and in the one here to be described they are dark 



