PUPA. 



207 



Pupa contracta, Say. 

 Vol. III. I'l. LXX. Fi^r. 2. 



Shell sulx'onical ; cpidennis whitisli horn-color; wliorls between 5 and G, 

 cry convex, diminishing regularly from the last whorl, which is somewhat vcn- 



Fig. 111. 



Pupa contracta. 



tricose, to the apex ; suture well impressed ; peristome white, thickened, some- 

 what reflected, its extremities connected by a raised, testaceous fold, making 

 the margin of the aperture entire ; aperture lateral, rather triangular or trilo- 

 bate, more than half as wide as the body-whorl, expanded above and diminish- 

 ing regularly into a very narrow throat, with 4 teeth, one upon the columella, 

 large, coarse, and irregular, projecting into and very much filling up the aper- 

 ture, and having a concavity on the side towards the peristome ; another tuber- 

 culous, not large, more or less near the margin of the peristome ; and two 

 others, massive and prominent, deep seated in the throat, one being in the base 

 behind the columellar tooth, and the other on the side of the umbilicus and 

 apparently produced by the umbilical fold ; umbilicus with a minute perfora- 

 tion ; base of the shell with a sharp keel between the umbilicus and margin ; 

 last whorl impressed behind the peristome. Length, 3, diameter, 1| mill. ; of 

 aperture, length, 1 mill. 



Pupa contracta, Say, Journ. Acad. Nat. Sci, Philad., II. 374(1822); Binney's 

 ed. 25 {Carychium ?). —Gould, Bost. Journ. Nat. Hist., III. 399, PI. III. Fig. 

 22(1840); IV. 359 (1843); Invertebrata, 186, Fig. 117 (1841). — DeKay, 

 N. Y. Moll., 49, PI. IV. Fig. 47 (1843). —Adams, Vermont Mollusca, 157. — 

 Pfeiffer, Symbolae, II. 54; Mon. Hel. Viv., II. 356. — KiJSTER, in Chem- 

 nitz, 2d ed. 96, tab. XIII. Figs. 16 -18. — BiNxNEY, Terr. Moll., II. 324, PI. 

 LXX. Fig. 2. — W. G. BiNNEY, T. M., IV. 143; L. & Fr.-W. Sli., I. 242 

 (1869). —Gould and BiNNEY, Inv. of Mass., ed. 2, 438 (1870). 



Pupa corticaria, Pfeiffer, Symbolfe, II. 54 (an var. /3 ? Pfeiffer, I. c). 



Pupa deliostoma, Cuahpentier, in Chemnitz, ed. 2, p. 181, PI. XXI, Figs. 17- 

 19. — Pfeiffer, Mon. Hel. Viv., IV. 683. 



Leucochila contracta, Morse, Amer. Nat., ^dQ, Fig. 54 (1868). — Tryon, Am. 

 Journ. Conch., III. 307 (1868). 



Inhabits the whole of the Eastern Province. 



Animal blackish above, foot light gray. Eye-peduncles long and slender, 



