South African Crustacea. 17 



by Fabricius in his Supplement, although it is found in the previous 

 editions of his Entomology, under the Linnean name that is, 

 Cancer raninus." The suspicion arises that the latter was intention- 

 ally omitted, because Fabricius had discovered that between raninus 

 and scabra there was no difference. Milne-Edwards adopts the 

 name Ranina dentata, from Latreille, " Encyclop. t. x., p. 268," but 

 this specific name was obviously due to a lapse of memory on 

 Latreille's part, probably occasioned by the accident that Bosc, 

 Latreille himself, and Desmarest translated Lamarck's serrata by 

 the French words dentelee or dentee. Latreille himself, in his 

 " Cours d'Entomologie," p. 368, 1831, says of his tribe Notopterygia : 

 " This tribe is composed of the genus Ranina, of Lamarck, and has 

 for type the albunea scabra of Fabricius, or the cancer raninus of 

 LinneV' R. cristata, Desjardins, " Ann. Soc. Entom., 1835," is 

 explained by de Haan to be the male of the present species. 



The specimen sent from the Durban Museum was a comparatively 

 small one, as the carapace measured only 75 mm. in length. 



FAMILY CALAPPID^. 



1896. Calappidce, Alcock, Journ. Asiat. Soc. Bengal, vol. Ixv., pt. 2, 

 pp. 136, 137. 



Alcock gives the following character : " Carapace of the ordinary 

 brachyurous shape. The afferent branchial openings are found in 

 front of the bases of the chelipeds. The antennae are small. The 

 legs are normal in position. The vasa deferentia perforate the bases 

 of the fifth pair of legs. The branchiae are nine in number on either 

 side. The external maxillipeds either completely cover the buccal 

 cavern and have their palp hidden in repose (Matutince), or do not 

 close the buccal cavern and have their palp always exposed 

 (Calappince)." 



GEN. CALAPPA, Fabricius. 



1798. Calappa, Fabricius, Suppl. Ent. Syst., p. 345. 

 1896. Calappa, Alcock, Journ. Asiat. Soc. Bengal, vol. Ixv., pt. 2, 

 p. 139. 



CALAPPA HEPATICA (Linn.). 



1758. Cancer hepaticits, Linn., Syst. Nat., ed. 10, p. 630. 

 1785. Cancer hepaticus, Herbst, Naturg. Krabben u. Krebse, vol. i., 

 pt. 6, p. 198. 



9. 



