124 Annals of the South African Museum. 



spinicornis) ; Mediterranean (Delia Valle, taurus) ; Java, 3 S. 

 107 E. (Stebbing, spinicornis) ; Seychelles, 0-85 fathoms (Walker, 

 serricrus). 



GEN. SOCABNOPSIS Chevreux. 



1910. Socarnopsis Chevreux, Mem. Soc. Zool. Fr. vol. 23 (1910), 



p. 164. 



The Iclmopus schmardae Delia Valle (non Heller), as Stebbiug aud 

 Chevreux have pointed out, cannot be retained in the genus Iclmopus, 

 but must be transferred to the present genus. Chevreux has enume- 

 rated the differences between schmardae and his own crenulata. 



SOCARNOPSIS CRENULATA Chevreux. 



1910. Socarnopsis crenulata Chevreux, I.e. p. 165, text-tig. 2 and 



pi. 7, figs. 1-13 (c? ?). 



Chevreux's $ measured 5'5 mm., whereas the South Afi'ican $ 

 specimen measures double that size, so that it is not surprising to find 

 a few minor points of difference. 



First antenna, flagellum 20-jointed, 1st joint as long as peduncle 

 with ca. 18 transverse rows of setae, accessory flagellum 7-jointed, 1st 

 joint equal to the following 4 joints. 



Maxilliped, inner apical angle of inner plate projecting, tooth-like, 

 surrounded by several rather stout setae. 



First and second gnathopocls, 6th joint slightly more setiferous than 

 in Chevreux's figures. The finger of the 2nd gnathopod has a small 

 tooth at apex of interior margin as in 1st guathopod. 



Third peraeopod, anterior margin of 2nd joint with 16 spinules, 

 anterior margin of 6th joint with 6 pairs of spinules. 



Fourth peraeopod, anterior margin of 2nd joint with 11 spinules, 

 the basal portion being unarmed. 



Fifth peraeopod similarly with 14 spinules, chiefly at the distal end. 



First and second uropods, peduncle and rami each with a row of 

 spines along upper margins. 



Third uropod, outer ramus with distinct 2nd joint and a small 

 spinule on inner apex of 1st joint. 



Length : 11 mm. 



Colour : In spirit, yellowish, eyes pale brown. 



Locality : Glendower Beacon N. \ W., distant 16 miles (near Port 

 Alfred). 66 fathoms. 1 $. s.s. " Pieter Faure." 10/9/01. (S.A.M. 

 No. A135.) 



