CURRENT LITERATURE. 179 



VARIATION. 



Cockerell, T. D. A.— Climate and Variation of Slugs. Science, 1893, xxi., 

 pp. 338-9. 



Melvill, J. C— On a variety of Cytraa cruenta, Gmel. Journ. Conch., 1893, 



p. 194- 

 Nelson, Wm.-A variety of Limnma palustris. Naturalist, 1893, p. 251. 

 Sterki, V '. — Conulus fulvus, Mull., var. nov. dentatus. Naut., 1893, vii., pp. 4-5. 

 Taylor, J. W. — Vertigo pttsilla, var. albina. Journ. Conch., 1893, p. 194. 

 Taylor, J. W. — Planorbis a/bus, v. sulcata. Ibid., 1893, P- 2 °9- 



CLASSIFICATION, NOMENCLATURE, NEW GENERA, 

 AND SPECIES. 



Ancey, C. F. — Description d'une nouvelle Helice de Kabylie. Bull. Soc. Zool. 



d. France, 1893", xviii., p. 136. H. subaperta. (= H. mazzuliopsis, 



Ancey, MSS.). 



Ancey, C. F. — Descr. d'une espece nouvelle de Pupa de l'AIgerie. Ibid., p. 138. 



Bush, Katherine J. — Rpt. on the Moll, dredged by the "Blake" in 1880, 

 including descrs. of several new species. Bull. Mus. Comp. Zool., 1893, 

 pp. 199-244, pi. i-ii. 



Cockerell, T. D. A. — Notes on the North American species of Sucrinea. 



Naut., 1893, vn -> PP- 43-46. 

 Crosse, H., and Fischer, P. — Descr. d'un Bulimulus et d'un Anodonta 



nouveaux provenant du Mexique. Journ. de Conchyl., 1893, pp. 31-2, pi. 1. 



Dall, W. H. — New species of Yoldia from California. Naut., 1893, vu -> P- 2 9- 



Dautzenberg, Ph. — Descr. d'un Perideris nouveau, provenant du Dahomey. 

 Journ. de Conchyl., 1893, pp. 33-4, pi. 1. 



Dautzenberg, Ph. — Descr. d'un nouvelle espece du genre Littorina, provenant, 

 des cotes de la Tunisie. Ibid., pp. 35-6, pi. 1. 



Dautzenberg, Ph.— Descr. d'un Mollusque nouveau, provenant du Congo 

 francais. Ibid., pp. 50-1. 



Drouet, H. — Unionidtz nouveaux ou peu connus. Ibid., pp. 36-50. 



Fischer, H. — Note sur l'animal du Bulimulus chaperi. Ibid., pp. 32-3, pi. 1. 



Ford, John. — Descr. of a new species of Cypraa. Naut., 1893, vii., pp. 39-4 1 - 



Godwin-Austen, H. H. — On a supposed new species of Rhiostoma from Borneo, 

 and notices of Two other species of shells from Palawan. Ann. and Mag. 

 N.H., 1893, pp. 32-3; 3 woodcuts. 

 A', boxalli, sp. n. ; Lagocheilus similis, E. A. Smith, var. sp. ; and Cassidula 



bicolor, sp. n. 



Goldfuss, O. — Eine Neue Pomatia. Nachr. Deutsch. Malak. Gesell., 1893, p. 86. 



Hedley, C, and Suter, H. — Reference List of the Land and Freshwater 



Mollusca of New Zealand. Proc. Linn. Soc, N.S.W., 1892, (2), vii., 



pp. 613-65. 



It is now ten years since Professor Hutton's " Revision of the Land Mollusca 



of New Zealand " was published. That conchologists have not been idle since 



that time is evidenced by the present reference list, in which Mr. Hedley and 



Mr. Suter enumerate 43 additional species and 13 varieties unknown at that time. 



We regret to note that the names of seven species here published for the first 



