CARYCIIIUM. 



extguum, 

 greatly- 

 enlarged. 



convex, very oblique, with transverse striae ; suture distinct, impressed 

 aperture obliquely oval, wliite, with a promi- 

 ^ig- 7. nent plait on the columellar margin, about 



midway between the extremities of the lip, 

 and a slightly prominent fold near the junc- 

 tion of the lip with the umbilical extremity 

 of the shell ; lip thick, reflected, flattened ; 

 umbilicus perforated. Length 1|, diam. f 

 mill. Aperture J mill. long. 



Pupa exirjua, Say, Journ. Acad. II, 375 Cm-i/ckium 

 (1S22) ; ed. Binney, 26.— Gould, Bost. 

 Journ. Ill, 398, pi. iii, f. 20 (1841) ; IV, 3.58 (1843) ; In- 

 vertebrata, 191, f. 122 (1841).— DeKay, New York Fauna, 

 49, pi. iv, f. 46 (1843).— Adams, Vermont Mollusca, 158, fig. (1842). 



Bulimus exigutis, Binney, Terr. Moll. II, 286, pi. liii, f. 1. 



Carychium exiguiim, Gould, in Terr. Moll. II, 286. — Chemnitz, ed. 2, 61, 

 pi. i, f. 13, 14. — Pfeiffeii, Mon. Auric. 165 ; Brit. Mus. Auric, 127; 

 Wiegm. Arch. 1841, 1, 224.— W. G. Binney T. M. IV, 178.— Fkauen- 

 FELD (1847), Akad. der Wiss. XIX, 79 ; Zool. Bot. Wien. IV, 10, pi. 

 1, f. 1 (1854).— Boukguignat, Mag. Zool. 1857, 209, 



Carychium exile, H. C. Lea, Am. Journ. Sc. [i], XLII, 109, pi. i, f. 5 (1841). 

 — Teoschel, Ar. f. Nat. II, 128 (1843). 



Carychium exisielinm, Boueguignat, /. c. 220. 



Carychium euphceum, Boukguignat, /. c. 221. 



Has been found in the New England, Northern and Middle 

 States, in South Carolina, Arkansas, and Texas. 



Animal colorless ; tentacles stout, hyaline, one-third the length 

 of the foot. The foot is short, thick, dis- 

 tinctly divided into two segments.* the an- -picr. 9. 

 terior of which is bilobed, and projects, when 

 the animal is in motion, considerably in ad- 

 vance of the head. Eyes oval, situated on 

 the back, near the base of the tentacles. Its 

 motions are very sluggish. It carries the Carychium exiguum. 

 shell directed horizontally ; the shell is so 

 transparent that the viscera of the animal may be seen through it. 



It has been said to resemble Carychium minimum, of Miiller, 

 but neither the figure nor description, as given by Draparnaud, 

 correspond with our shell. 



It is found under stones and fragments of wood, and especially 

 among moss, in damp places. It is the only species of this 



' This does not agree with the generic description of Carychium. 

 2 



