APPENDIX. 113 



POIRETIA ROUISIANA Pilsbl'y. 



New name for Oleacina teres Rouis, Sandberger, Land und 

 Siisswasser Conchyl. der Vorwelt, p. 232, pi. 13, f. 26 (1872), 

 not Oleacina teres Pfr., Malak. Bl. 1866, p. 140. Eocene, 

 Buxweiler. 



POIRETIA WOODI Pilsbry. 



New name for Bulimus convexus 'Edwards' S. V. Wood, 

 1877 (Vol. XIX, p. xxiii), not of Pfeiffer, 1855 (cf. vol. XI, 

 p. 216). The generic position of this Oligocene form of the 

 Isle of Wight is uncertain. Photographic figures are re- 

 produced by Taylor, Mon. Brit. Land and Freshwater Moll. 

 ii, p. 29, f. 46, 47. 



POIRETIA MILLERI Pils. 



New name for Glandina ovata Miller (Vol. XIX, p. xxiii), 

 not Glandina truncata var ovata Dall. 



ACHATINA NYIKAENSIS Pils. 



New name for A. fragilis Smith, 1899, Vol. XVII, p. 63. 

 Not Achatina fragilis Deshayes, An. s. Vert. II. 

 ARCHACHATINA MARQINATA EDUARDI Pils. 



New name for Achatina marginata var. gracilior Martens 

 (Manual XVII, p. Ill), not Achatina gracilior C. B. Ad. 

 1850. 

 ARCHACHATINA PURPUREA (Gmel.) Vol. XVII, p. 144. 



Add the following synonyms: Achatina purpurascens G. 

 FISCHER, Museum Demidoff iii, p. 224 (1807). Achatina 

 erythrostoma SWAINSON, Bligh Catal., Appendix p. 14 (1822), 

 based on Martini and Chemnitz, IX, f. 1017, 1018. 



HELIX (COCHLITOMA) CANTHERIATA Fer., Prodr. p. 49, no. 

 340 is a nude name. Ferussac refers to the figure of a 

 Phasianella as perhaps illustrating it. Habitat unknown. 



ACHATINA HYALINA Anton. " Oval-conoidal, 5 convex 

 whorls with deep suture, last whorl two-fifths the total length ; 

 transparent, glossy, yellowish-gray, finely striate, imperfor- 

 ate. Aperture long-oval, peristome acute ; columella strongly 



