JBiniiey on Terrestrial Mollasks. 193 



SYNONYMS AND REFERENCES. 



Helicina Eanleyana Pfeiffer, in Troc. Ztiol. Soc. 1848, p. 122; Jlon. Pneum. 

 Viv. i. 370; ii. 203. 

 Chemnitz, cd. 2, p. 45, pi. ix. figs. 7, 8. 

 Gray et Pfeiffer, Brit. Mus. Phaii. p. 302. 



Remarks. I have not seen this shell. The original 

 description is given above, and a fac-simile of the figures 

 from Chemnitz, ed. 2. 



HELICINA OCCULTA Say vol. ii. p. 356, pi. Ixxiv. figs. 1, 2. 



Helicina occulta Say (Binney'sed.) pp. 36, 37, pl. xlvi. figs. 4-6. 



Chenu, Bibl. Conch, iii. p. 59, pl. xv. figs. 2 b, 2 c, 2 d. 



DeKay, N. Y. Moll. p. 82. 



Pfeiffer, Mon. Pneum. Viv. i. 347; ii. 185. 



Chemnitz, ed. 2, p. 18, (1846), pl. iv. figs. 11, 12, (1850). 



Gray and Pfeiffer, Brit. Mus. Plian. p. 250. 

 Helicina rubella Green, 1. c. 



This is probably the species referred to in Kirtland's 

 Ohio Rep. p. 199 (1838). 



I am inclined to consider Hel. rubella Green as a syno- 

 nym of this species. From Sheboygan, Wise, I have 

 received an apparently recent specimen of it collected by 

 Mr. Lapham. Green's description is as follows : — 



Helicina rubella. Shell more than ^ inch broad, subglobose; 

 spire slightly elevated, conical ; whorls 5 or 6, with minute obli(|uc 

 striae ; sutures slightly impressed ; epidermis smooth and of a light 

 brick-red color ; aperture irregularly lunate, or semi-elliptical ; outer 

 lip white, callous, and partially reflected near the base ; operculum cor- 

 neous, smooth. Hills, western Pennsylvania. 



HELICINA ORBICULATA Say. . . .vol. ii. p. 352, pl. Ixxiii. Ixxiv. fig. 3. 



Helicina orbiculaia Say, (Binney's ed.) pp. 7, 36, pl. xlvi. figs. 1, 2. 



Chenu, Bibl. Conch. 3, p. 58, pl. xv. fig. 2, 2 a, 2 c. 

 DeKay, N. Y. ]Mo11. p. 82. 



Chemnitz, ed. 2, p. 74, (1846), pl. x. figs. 32, 33. 

 Pfeiffer, Men. Pneum. Viv. i. 375; ii. 199, (excl. // 'v- 



bella). 

 Gr/Vy and Pfeiffer, Brit. Mus. Phan. p. 272, not of Suw- 



ERBY. 

 JOURNAL B. S. N. H. • 25 



