pupa. 203 



Pupilla Californica, Tryon, Amer. Journ. Conch., III. 304 (1868). 



San Francisco, California, and at Catalina Island, in the California Region. 

 It is also quoted from Colorado by Ingersoll, but I am not sure of the identity 

 of his specimens. 



Animal unobserved. 



Subgenus LEUCOCHILA, Alb. & Mart. 



Animal as in Pupilla. 



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

 ing, pellucid ; whorls 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. PL 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, stria? 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, b\, diam- 

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



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



ney's ed., 22. 

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



— W. G. Binney, Terr. Moll., IV. 136. 

 Bulimus fallax, Gould, in Terr. Moll., II. 28S, PL LII. .Fig. 1. 

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



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



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



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



333; in Chemnitz, ed. 2, 58, PL 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 Parraiana, D'Orbigny, Moll. Cuba, 181, PL XII. Figs. 9-11 (1853). 

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



XL. 271. 

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

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



From Nebraska to Texas and from New England to South Carolina. It may 

 therefore be considered to range over all of the Eastern Province. 1 In several 

 of the West India Islands, also. 



i Referred to ccenopictus and pacifica by Jickeli, Verb.. L. C. Akad., XXXIII., 97, PI. 

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



