124 Annals of the South African Museum. 
spinicornis) ; Mediterranean (Della Valle, taurus); Java, 3° S. 
107° E. (Stebbing, spinicornis) ; Seychelles, 0-85 fathoms (Walker, 
serricrus). 
Gen. SOCARNOPSIS Chevreux. 
1910. Socarnopsis Chevreux, Mem. Soc. Zool. Fr. vol. 28 (1910), 
p. 164. 
The Ichnopus schmardae Della Valle (non Heller), as Stebbing and 
Chevreux have pointed out, cannot be retained in the genus Ichnopus, 
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, l.c. p. 165, text-fig. 2 and 
pl. 7, figs. 1-18 (¢ 2). 
Chevreux’s 9 measured 5°5 mm., whereas the South African ¢ 
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, Ist 
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 gnathopods, 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 gnathopod. 
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 Ist joint. 
Length: 11 mm. 
Colour: In spirit, yellowish, eyes pale brown. 
Locality: Glendower Beacon N. 3 W., distant 16 miles (near Port 
Alfred). 66 fathoms. 1 3%. s.s. “Pieter Faure.” 10/9/01. (38.A.M. 
No. A135.) 
