78 COCIILITOMA. 



Before Ferussac, generic names had already been proposed 

 for part of the species of his list, Achatina Lam. 1799 com- 

 prising species 345 to 349, 352 and 353 ; Liguus Montf . 1810 

 takes in species 343, 344. Subsequent eliminations removed 

 342 to Corona (1850), 341 to Pseiidotroclms (1855), 339 to 

 Atopocochlis (1888), and 350, 351, to Archachatina (1850). 

 These removals have left only no. 354, Helix zebra Fer., 

 Achatina zebra of authors, the sole unassigned species of 

 Ferussac 's list; and I propose to restrict the name Cochlitoma 

 to species of this type. I cannot find that a type for the group 

 has been selected by any author up to this time. 



Cristofori et Jan in the catalogue of their collection, 1832 

 (Sect, ii, part 1, p. 4), place only A. perdix Lam. under 

 Cochlitoma. This might be held to restrict the name to that 

 species, were it not that the locality given, "Amer Antill. " 

 throws grave doubt upon the identification and the name 

 perdix does not occur in Ferussac 's list. 



LITERATURE OP SOUTH AFRICAN ACHATINID^. The special 

 literature began with Dr. F. Krauss (b. 1812, d. 1890) author 

 of that excellent work Die Siidafrikanischen Mollusken, 

 Stuttgart, 1848. Krauss gave a list of the Achatinas with 

 valuable notes on pp. 80, 81. In the Annals and Magazine of 

 Natural History (6), vi, pp. 390-393, Mr. Edgar A. Smith 

 catalogued the species known up to 1890. In the same year 

 Messrs. James Cosmo Melvill and John Ponsonby began a 

 series of papers of the first importance upon the South 

 African fauna, continuing to the present time, containing 

 descriptions and figures of a large number of species of 

 Achatina. They have also published a summary of the land 

 molluscan fauna of the region in Proceedings of the Mala- 

 cological Society of London, iii, Achatinidce on pp. 178, 179 

 (1898). Finally Dr. Rudolf Sturaiiy also has enumerated 

 the species in his Catalog der bisher bekannt geworden 

 Siidafrikanischen Land- und Siisswasser-Mollusken, in Denk- 

 schrift der Math, naturwissenschaftlichen Classe der Kaiser- 

 lichen Akademie der Wissenschaften, vol. Ixvii (1898). 



