1 66 DISCOVERY REPORTS 



Remarks. The Discovery specimens agree so closely with the description and figures given by 

 Zimmer for L. megalops that, although this species has never before been recorded outside the Medi- 

 terranean, I have no hesitation in referring them to it. The very large eyes, the long slender scale, the 

 smooth integument and the form and armature of the uropods and telson make the species readily 

 recognizable. It may be distinguished from L. capensis, which it closely resembles, by the absence of 

 dense bristles on the integument and by the somewhat longer apex of the antennal scale. 



In Zimmer's figures the rostrum is more acutely pointed than in the Discovery specimens. I find, 

 however, that the lateral margins of the rostrum are uptilted, so that in dorsal view the apex appears 

 narrower and more acutely pointed than it actually is. When flattened out, the margins meet in a 

 rounded angle of about 90 . 



Distribution. Up to the present L. megalops has been recorded on three occasions, all from the 

 Mediterranean. The types were taken near Naples and it has been recorded from the same locality by 

 Colosi (1929). It has been recorded from two stations off the south of France near Cannes (Bacesco, 

 1941, p. 25). 



The Discovery records extend along the west coast of Central and South Africa from Cape Lopez, 

 just south of the Equator, to the Cape of Good Hope, and I think that the species probably occurs in 

 coastal waters, along the coasts of Africa, from the Straits of Gibraltar to the equator. 



Genus Afromysis Zimmer, 1916 

 1916 Afromysis Zimmer, p. 62. 



Remarks. This genus closely resembles the genus Bathymysis Tattersall but may be distinguished 

 from it by its well-developed, normal eyes ; by the presence of only two segments in the propodus of 

 the thoracic endopods and by the presence of a pair of long plumose setae at the base of the cleft 

 of the telson. Three species have now been referred to this genus — the type species, A. hansoni 

 Zimmer, A. macropsis Tattersall and A. australiensis Tattersall. Only the type species is represented 

 in the Discovery collection. 



Afromysis hansoni Zimmer, 191 6 

 1916 Afromysis hansoni Zimmer, p. 63, text-figs. 2-8. 



Localities : 



Walvis Bay. 12. ix. 26. From stomach of Trigla capensis taken at a depth of 4-57 m., 1 adult S, 10-4 mm., 1 imm. <J, 



fragments. 

 St. 280. 10. viii. 27 (night). Off Cape Lopez, 84-0 m., 1 adult $, 8-5 mm. 



Remarks. I have nothing to add to the very full description given by Zimmer, except that the 

 spines arming the inner margin of the endopod of the uropod in my specimens are stouter and blunter 

 and do not show such inequality in size as described and figured by Zimmer for the type. The Dis- 

 covery specimens appear to be adult at a much smaller size than the type, which was 13 mm. in 

 length. 



Distribution. One of the two captures of this species was made in precisely the same conditions 

 as that of the type specimens, from the stomach of Trigla capensis taken in Walvis Bay, South Africa. 

 The other record is from near Cape Lopez, just south of the equator and is therefore much farther 

 north ; this is the only recorded capture of a free swimming specimen. 



