8 Annals of the South African Museum. 



1902. Munidopsis simplex, Benedict, Pr. U.S. Mus., vol. 26, pp.277, 



326. 



1908. ,, ,, Hansen, Danish Ingolf Exp., vol. 3, Crust. 



Malac., p. 37. 



In Benedict's useful key to fifty-one species of the genus, 

 M. simplex is distinguished as one of those in which eye spines 

 are not present, the rostrum is simple and curved upward, the 

 armature of the pleon confined to the median line, the median 

 line on the gastric area armed with spines or tubercles, 

 orbicular (? orbital) sinus lacking, and finally with carapace of 

 nearly uniform width, widest in middle, not cut up into lobes. 

 M. longirostris, A. M. -Edwards and Bouvier, agrees with it, 

 according to the key, except in having " carapace not uniform 

 in width, cut into lobes by cervical sutures" and "broadest 

 near anterior end." Our specimens have the carapace 

 narrowest near anterior end, with antero-lateral spines less 

 pronounced than those figured for M. longirostris. On the 

 other hand, the third maxillipeds have only two teeth on the 

 inner margin of the fourth joint, which the French authors 

 mention as a character of their species, compared with the 

 three teeth in M. simplex. Here also the carapace has a 

 transverse pair of teeth followed by a single tooth near them 

 and another quite distinct at a distance, in accord with 

 M. longirostris. Thus, as the French authors themselves 

 suggest, the two forms are probably not specifically distinct. 

 The carapace including rostrum of the larger specimen 

 measures 22 mm. in length, the pleon being rather shorter ; 

 it contained eggs in no great quantity. The carapace of a 

 much smaller specimen measured 18 mm., of which the 

 rostrum accounted for 7 '5 mm. 



Locality. Cape Point, N. 77 E. (Cape Colony) ; depth 660 

 fathoms. A 912. 



MACRURA GENUINA. 



TEIBE THALASSINIDEA. 



1893. Thalassinidea (part), Stebbing, History of Crustacea, Internat. 



Sci. Ser., vol. 74, p. 180. 



1901. ,, Alcock, Catal. Indian Deep-sea Macrura, p. 151. 



3903. Borradaile, Ann. Nat. Hist., Ser. 7, vol. 12, 



p. 534. 



