HELIX. 



lot 



Helix cereolus, MaoLFELDT, Berlin Mag. VIII (1816), 41, pi. ii, f. 18. — 

 Pfeiffek, Mon. Hel. Viv. I, 4U8 ; fin Chemmtz, ed. 2, 1, 378, pi. Ixvi, 

 f. 1-3.—? Reeve, Con. Icon. 698.— Bland, Ann. N. Y. Lye. VII, 136, 

 f. 2.— W. G. BisNEY, Terr. Moll. IV, SO, part, pl. Ixxvii, f. 23. 



Helix septemvolva, ?FERassAc, Hist. pl. li, f. G.— ?Woop, Index Test. 

 Suppl. vii, f. 14 ; ed. Hanley, 22tj, f. 14. — ? Sowekby, Conch. Man. 

 ed. 2, f. 275.— BiNNEY, Bost. Journ. Nat. Hist. Ill, 391, pl. xix, f. 4 

 (1840) ; Terr. Moll. II, 19G, pi. xxxviii, central line. — Deshayes in 

 Fer. Hist. 5. 



Helix planorhula, Lamarck? An. s. Vert. VI, 89. — ? Deshayes in Lam. 

 VIII, 67 ; Eucycl. Meth. II, 208 (1830).— ?Delessert, Rec. pl. xxvi, 

 f. 3 (1841).—? Chemj, Illust. Conch, pl. xii, f. 3. 



Helix cereolus, var. lamini/era, W. G. Binney, Proc. Acad. Nat. Sci. Phila. 

 1858, 200, no descr. 



Polygyra cereolus, Tryon, Am. Journ. Conch. Ill, 158, pl. xi, f. 19-21 

 (1867). 



Indian Key and Indian River, Florida, 



The umbilical opening, in specimens of about equal size, is 

 only half the width of that in septemvolva ; the last whirl is wider, 

 especially towards its termination at the aperture, more inflated, 

 and rather less acutely carinated. The aperture is more orbicular, 

 more contracted, and the peristome more expanded and acutely 

 reflected, and at its junction below with its pillar lip more closely 

 appressed to the last whirl. 



Fig. 182 represents a specimen broken, so as to show the in- 

 ternal lamina. 



Cat. No. No.ofSp.l 



Locality. 



S640 

 SS20 



1 



100+ 



Fiorida. 



Indian Key, Fla. 



From whom received. 



W. G. Binuey. 

 G. Wurdemaun. 



Helix carpenteriaiia, Bland. — Shell umbilicate, orbicular, horn- 

 colored or pale rufous, above flat, obliquely and acutely ribbed, beneath 

 convex, slightly striated, shining, often ornamented with indistinct white 

 spots ; suture deeply impressed ; whirls five and a half to six and a half, 

 the last subangular at the periphery, shortly but suddenly deflected at 

 the aperture, gibbous, scrobiculate, constricted, tumid behind the aperture, 

 and ribbed, base dilated, with a white internal thread-like lamina' on the 

 columellar wall near the point of attachment of the aperture ; aperture 



' As in U. cereolus, see Fig. 182, p. 106. 



