South African Crustacea. 5 



FAMILY BLASTED^. 



1902. Blastidce, Stebbing, S.A. Crust., pt. 2, p. 2. 

 1905. Blastida;, Stebbing, S.A. Crust., pt. 3, pp. 22, 25. 



For Alcock's equivalent sub-family Pisinae see Journ. Asiat. Soc. 

 Bengal, vol. Ixiv., pt. 2, pp. 160, 165, 200, 1895, and Deep-sea 

 Brachyura of the Investigator, p. 49, 1899. 



GEN. HALIMUS, Latreille. 



1829. Halimus, Latreille, Eegne Animal, 6d. 2, vol. iv., p. 60. 

 1831. Halimus, Latreille, Cours d'Entomologie, p. 362. 

 1834 (or earlier). Halimus, Guerin, Iconograpbie, Crust., pi. 9, fig. 2. 

 1834. Halimus, Milne-Edwards, Hist. Nat. Crust., vol. i., p. 340. 

 1895. Hyastenus, Alcock, Journ. Asiat. Soc. Bengal, vol. Ixiv., pt. 2, 



pp. 200, 206. 

 1897. Halimus, M. J. Eatbbun, Proc. Biol. Soc. Washington, 



vol. xi., p. 157. 

 1904. Hyastenus, Doflein, Valdivia Brachyura, p. 85. 



Miss Eathbun has explained that when Latreille defined this 

 genus he did not name the species belonging to it. Gue'rin, who 

 is quoted by Milne-Edwards in 1834, assigned to the genus the 

 single species Halimus aries, Latreille, which must therefore be 

 regarded as the type, since there was at the time no competitor 

 in the field. Milne-Edwards assigned to the genus the additional 

 species H. auritus (Latreille). Unluckily the first species was 

 included in White's genus Hyastenus, 1847, thus constituting 

 Hyastenus a synonym of Halimus. 



The points on which Latreille relied for defining his genus were 

 that the ocular peduncles, though short, are always exposed, and 

 that the second antennas have the third joint of the peduncle at 

 least as long as the preceding joint, and carrying a long setaceous 

 flagellum. He considered the genus to be near Micippe, Leach, and 

 discusses it between Leach's genera Camposcia and Hyas. 



For the modern definition see the references to Hyastenus, 

 Alcock. 



HALIMUS DIACANTHUS (de Haan). 

 1839. Pisa (Naxia) diacantha, de Haan, Crust. Japon.,decas quarta, 



p. 96, pi. 24, fig. 1 (1838), and pi. G. 

 1895. Hyastenus diacanthus, Alcock, Journ. Asiat. Soc. Bengal, 



vol. Ixiv., pt. 2, pp. 208, 210. 



