non- Marine Mollusca from South Africa. 193 



We have lately received from Mr. Burnup undoubted specimens of this 

 species from Piaetown and Maritzburg. Is it possible that this may 

 prove to be identical with Helicolimax pellicula, F(5r. P 



Page 172. Add *Urucycliis Kirkii, Gray, Proc. Zool. Soc. 1SG4, p. 2ol.— 

 Hab. Natal. 



Page 174. Trachucyitis rivularis, Krs.— Hab. Natal (not Cape Town). 



Page 176. Add *Bul. vifellimis, Pfr. Proc. Zool. Soc. 1854, p. 57.— 

 IZab. Natal. 



Page 178. Add *Achat. Schtncki, Mts. Sitz. Bar. Ges. naturf. Berlin, 

 18S9, p. 164.— Z^ai. Transvaal. 



Page 180. \didi * Oiicidlum Peroni, Cuvier, Ann. Mus. Nat. Hist. vol. v. 

 (1804J p. 38, pi. vi.—Hab. Natal. 



Page 180. *Auricula pellucens, Mke., is mentioned by Krauss (Siidafr. 

 Moll. p. 82) as coming from Natal. Is it possible that this species may 

 have been quoted in error ? Could Kr.iuss have had before him speci- 

 mens of the shell hereinafter described as A. durbanica ? 



Page 181. *Limn(ea umlaasiann, Kiist. Dr. Sturany, in quoting this 

 species, observes that Bourguignat considered it identical with L. trun- 

 catida, Drap., recorded by us on page 184. We have not seen Kiister's 

 species, but should be quite disposed under the circumstances to accept 

 Bourguignat's verdict. 



Page 181. Dr. Sturany states that on anatomical grounds some of the 

 species included by us in the genus P/iysa should be removed to Isidora. 

 It appears that P. zanzibarica, Cless., has priority over P. cornea, Morel. ; 

 P. Forskali, Ehrn., has priority over P. JVa/ilherc/i, Krs., a spjcies of 

 Pyryophysa, to which perhaps P. gradata, M. & P., should be added. 

 Physa Cniveni, Ancey, must be substituted for P. lirata, Craven (no:u. 

 prseocc). Dr. Sturany calls this species " P. Craveni, mihi," overlooking- 

 the fact that Ancey gave it this name in ' Le Naturaliste ' of 18S6. 



Page 182. Add *Paludestrina caledonensis, Chaper, as Hydrobia, Bull. 

 Soc. Zool. de France, vol. x. (1885) p. 484, pi. xi. fig. 6. — 

 Hab. Cape Colony. 

 Add *Paludestri)ia ziuelle))damensis, Kr., Kiist. C.-nch.-Cab. 

 {Paludina) p. 53, pi. x. figs. 19, 20. — Hab. Cape Colony, 



Melanin histrionica, Rve. Conch. Icon. xii. pi. xxix. sp. 192, was 

 described from " Cape Colony " on the authority of the Cumingian collec- 

 tion. The type, now in the British Museum, appears to be closely allied 

 to, if not a variety of, Paramelania aurita, Miill., a West-African species, 

 •whose presence in South Africa appears to require confirmation. 



Cleopatra amama, Morel., would seem from the type in the Brit. Mus. 

 to be scarcely a var. of C. ferruginca, Lea. We "have lately received 

 some young shells, collected by Dr. Gibbons at Prieska, which may be 

 referable to this species. 



Cyclotus 7iatalensis, Pfr., has been shown by Ancey (Bull. Mus. Mar- 

 seilles, vol. i. (1898) p. 136) to be the CyclopKorm Klobukowskii, Murlet, 

 from Tonkin, and must therefore be removed from South-African lists. 



Ancey has further proposed iloc. cit.) the na.meC/iondrocyclus for Ci/cloph. 

 convexiuscuhwi, Pfr., and to this section C. alabantris, Craven, should no 

 doubt be assigned. An examination of the operculum of C. minimus, 

 M. & P. (now for the first time figured, PI. III. fig. 15), shows it to possess 

 a multispiral horny series of whorls with a small central nucleus, the 

 whorls being slightly elevated and concave. 



