ruPA. 203 



rupilla Cali/ornica, Tkyox, Amor. Jouni. Coiu-li., III. 304 (18C8). 



San Francisco, California, and at Catalina Island, in the California lle<^ion. 

 It is also (juoted from Colorado by Ingcrsoll, but I am not sure of the identity 

 of his specimens. 



Atiinial unobserved. 



Subgenus LEUCOCIIILA, Alij. & Maut. 



Animal as in Pupilla. 



Shell rimate, cylindrically ovate, apex rather obtuse ; ratliA* smooth, shin- 

 ing, pellucid ; Avliorls 6-7, rather convex, aperture semi-oval, edentulate or 

 narrowed by folds, among ■which the parietal is the strongest ; peristome thick- 

 ened, reflected, its external margin decidedly arcuate. 



Pupa fallax, Say. 

 Vol. III. PI. LII. Fig. 1. 



Shell fusiform, regularly diminishing in volume from the body-whorl to the 

 apex, smooth ; epidermis brownish horn-color ; whorls 6, very convex, stria3 of 

 growth hardly apparent; suture well impressed; aperture lateral, rounded 

 oval ; peristome white, rather broadly reflected, lined within with white callus, 

 its right termination strongly curved ; umbilicus perforated. Length, 5^, diam- 

 eter, 2-2| mill.; aperture, 1| mill. long. 



Cijclostoma marginata, Say, Journ. Acad. Nat. Sci. Phila., II. 172 (1821); Bin- 



ney's ed., 22. 

 Bulimus marginatus, Pfeiffer, Mai. Blatt., II. 94; Mon. Hel. Viv., IV. 414. 



--W. G. BiNNEY, Terr. Moll., IV. 13G. 

 Bulimus fallax, Gould, in Terr. Moll., II. 288, PI. LII. Fig. 1. 

 Papa fallaXy Say, Journ. Acad. Nat. Sci. Philad., V. 121 (1825) ; Binney's 



ed., 28. — Gould, Invertebrata, 192, Fig. 123 (1841), excl. syn. placida ; Best. 



Journ. Nat. Hist., IV. 357, PL XVI. Fig. 15 (1843). — DeKay, N. Y. Moll., 



51, PI. XXXV. Fig. 331 (1843). —Pfeiffer, Mon. Hel. Viv., II. 309; III. 



333; in Chemnitz, ed. 2, 58, PI. XII. Figs. 20, 21 (1844). — W. G. Binney, 



L. & Fr.-W. Sh., I. 239 (1869). 

 Leucochila marginata, Tryon, Am. Journ. Conch., III. 305 (1868). 

 \ Leucochila fallax, Tryon, 1. c. 



Pupa Parraia7ia, D'Orbigny, Moll. Cuba, 181, PI. XII. Figs. 9-11 (1853). 

 Pupa alhilahris, Adams, Vermont Mollusca, p. 158 (1842) ; SilUman's Journ. [i], 



XL 271. 

 Pupilla fallax, Morse, Amer. Nat., 609, Fig. 53 (1868). 

 Paludina turrita, Menke ? Syn. Meth., 40. s 



From l^ebraska to Texas and from New England to South Carolina. It may 

 therefore be considered to ranrje over all of the Eastern Province.^ In several 

 of the West India Islands, also. 



1 Referred to ca^nopictus and pacifica by Jickeli, Verb. L. C. Akad., XXXIII., 97, PI. 

 V. Fig. 1, radula, II. 1. 



