South African Crustacea. 19 



1905. Neopenaeopsis, Bouvier, Comptes Eendus, vol. 141, p. 747. 



1906. Parapeneus, Alcock, Catal. Indian Deep-sea Macrura, pp. 7, 



30, 52. 

 1909. Parapenaeus, Bouvier, Mem. Mus. Comp. Zool., vol. 27, 



p. 228. 

 1911. ,, de Man, Siboga Exp., vol. 39a, p. 77. 



1913. Parapeneus, Balss, Schultze's Forschungsreise in Siidafrika, 



vol. 5, pt. 2, p. 105. 



1914. Parapenaeus, Balss, Abhandl. K. Bayer. Ak. Wiss., Suppl. 



vol. 2, pt. 10, p. 10. 



Rostrum without ventral teeth ; carapace with longitudinal 

 and vertical sutures usually present ; nagella of first antennae 

 not very elongate ; " palp " of first maxilla unsegrnented ; all 

 the peraeopods without exopods ; no pleurobranch on the last 

 thoracic segment. 



Alcock in 1906 retains P. rectacutus (Bate) in the genus, 

 though pointing out that its carapace is without the sutures 

 which he includes among the characters of the genus. Dr. de 

 Man notices the difficulty. 



PARAPENAEUS FISSURUS (Bate). 

 Plate LXIX. 



1881. Penaeus fissurus, Bate, Ann. Nat. Hist., Ser. v., vol. 8, 



p. 180. 

 1888. ,, Bate, Rep. Voy. Challenger, vol. 24, p. 263, 



pi. 36, figs. 1, 1", Ip, Iz. 

 1899. ,, ,, Borradaile, Willey's Zool. Results, pt. 4, 



p. 404. 



1905. Parapeneus /., Alcock, Ann. Nat. Hist., Ser. 7, vol. 16, 



p. 520. 



1906. ,, Alcock, Catal. Indian Decap. Macrura, p. 31, 



pi. 5, figs. 16, 16a, 166. 

 1911. Parapenaeus /., de Man, Siboga Exp., vol. 39a, p. 79. 



1913. ,, de Man, Siboga Exp., vol. 39, pi. 8, figs. 25a, 



256. 



1914. ,, Balss, Abhandl. K. Beyer. Ak. Wiss., SuppL 



vol. 2, pt. 10, p. 10, text-fig. 4. 



In the specimens examined the rostrum makes a double 

 curve, with six teeth on its dorsal carina, the last small, at 

 some distance from the upturned apex ; the sides are also 

 carinate. Of the seven teeth on the carapace the pair between 



