General Catalogue of South African Cnistacea. 331 



OSTRACOTHERES TRIDACN^ (Rilppell). 



1830. Pinnoiliercs tridacnoi, Eiippell, Red Sea Crabs, p. 22, pi. 5, 



fig. 2, pi. 6, fig. 17. 

 1843. P. t., Krauss, Siidafrik. Crust., p. 47. 



" On the coast of Natal." 

 1853. Ostracotheres t., Milne-Edwards, Ann. Sci. Nat., Ser. 3, vol. xx. 



p. 219. 

 1875. 0. L, Paulson, Eed Sea Crustacea, p. 70. 

 1907. Ostmcoteres t., Nobili, Ann. Sci. Nat., Ser. 9, vol. iv., p. 299. 



Family HYMENOSOMATID^. 



1858. Hymenosomidce, Stimpson, Pr. Ac. Sci. Philad., vol. x., p. 108. 

 1900. H., Alcock, Journ. Asiat. Soc. Bengal, vol. Ixix., pp. 285, 291, 



295, 385. 

 1905. Hymenosomatidce, Stebbing, S.A. Crustacea, pt. 3, p. 49. 



It may be noted that Miers in 1886 classes the Hymenosominae as 

 a sub-family of the Pinnotheridie, thus, like Alcock, assigning them 

 to the Catometopa. Doflein in 1904 arranges the Hymenosomidae 

 and Parthenopidae as families of the Cyclometopa. Borradaile in 

 1907 and Caiman in 1909 place both these families among the 

 Oxyrrhyncha, as Ortmann had earlier done with the Hymenosomidae. 



Gen. HYMENOSOMA, Desmarest. 



1825. Hyvieno&oma, Desmarest, Consid. gen. Crust., p. 163. 



1905. H., Stebbing, S.A. Crustacea, pt. 3, p. 49. 



1909. H., Chilton, Subantarctic Islands of New Zealand, p. 610. 



Hymexosoma orbiculare, Desmarest. 

 1825. Hymenosovia. orbiculare, Desmarest, Consid. gen. Crust., p. 163, 

 pi. 26, fig. 6, a-e. 

 " Prom the Cape of Good Hope." 

 1838. (Hyvieiiosovia) Leachitim o., M^Leay, Annul, of S. Africa, p. 68. 

 1843. Hymenosoina o., Krauss, Siidafrik. Crust., p. 51. 



" The colour is brownish yellow. Tolerably frequent in 

 Table Bay, under stones and in holes." 

 1858. H. 0., Stimpson, Pr. Ac. Sci. Philad., vol. x., p. 108. 

 1886. H. 0., Miers, Challenger Brachyura, Reports, vol. xvii.,p. 280. 

 " Numerous specimens were collected in Simon's Bay, 

 South Africa, in 5 to 20 fathoms (mostly of small size).". 



