South African Crustacea. 15 



spines are present subapically on the fifth and proximally on the 

 sixth joint. In the first pair the second and third joints carry each 

 a strong apical spine. In the second pair only the second joint 

 is thus provided. All the peraeopods have exopods, those on the 

 fifth pair being very small. The fifth pair is slightly longer than the 

 fourth, both being considerably shorter than the third. The uropods 

 extend beyond the telson, the outer branch beyond the inner, its 

 small terminal tooth being on a level with the apical margin. 

 Length of specimen 45 mm., the carapace with its rostrum con- 

 stituting about one-third of this measurement. 



Locality. Great Fish Point Lighthouse, N. ^ W., 2 miles (Cape 

 Colony) ; depth 30 fathoms. A 1016. 



GEN. PENAEOPSIS, A. Milne-Edwards. 



1881. Penaeopsis, A. M. -Edwards in Bate, Ann. Nat. Hist., Ser. 5, 



vol. 8, pp. 171, 182. 



1888. ,, Bate, Eep. Voy. Challenger, vol. 24, p. 273. 



1891. Metapenaeus, Wood-Mason, Ann. Nat. Hist., Ser. 6, vol. 8, 

 p. 271. 



1906. Netapeneus, Alcock, Catal. Indian Decap. Crust., pt. 3, fasc. 1, 



pp. 5, 7, 16. 

 1909. Penaeopsis, Bouvier, Mem. Mus. Comp. Zool., vol. 27, No. 3, 



pp. 205, 220. 

 1911. ,, de Man, Siboga Exp., vol. 39a, pp. 8, 53. 



This genus, according to Dr. de Man, comprises nearly fifty 

 species. Some of them appear to be very closely connected 

 together. 



PENAEOPSIS QUINQUEDENTATUS (de Man). 



1902. Penaeus, sp., de Man, Abhandl. Senckenb. Naturforsch. Gesell., 

 vol. 25, p. 906, pi. 27, figs. 65, 65a-c. 



1907. Metapeneus quinquedentatus, de Man, Notes Leyden Mus., 



vol. 29, p. 133. 



1911. Penaeopsis q., de Man, Siboga Exp., vol. 39ft, pp. 8, 71. 



1913. de Man, Siboga Exp., vol. 39, pi. 7, fig. 23a-<7. 



Among points to be observed in this species, it may be 



noted that the carapace is without stridulating ridges, the 



body is finely tornentose, the rostrum setulose below, with five 



or six teeth on the convex upper margin, its apex reaching 



little beyond the large red bean-shaped cornea of the eye. 



There is a small epigastric tooth at some distance behind the 



