206 LAND AND FRESH-WATER SHELLS OF N. A. [PART L 



To this variety also are to be referred specimens having deli- 

 cate longitudinal light wax-colored patches. 



Cat. No. No. of Sp. 



Locality. 



From whom received. 



86S7 



Texas. Wasiilugton Co. j Dr. F. W. Mooje. 



Subgenus MORMUS, Albers. 

 Shell rimate, oblong-conic, striate or costulate, thin, white, 

 often variegated with brownish ; whirls 6-*7, the upper ones 

 somewhat flattened, the last rather tumid; aperture equalling 

 about half the shell's length, subovate ; peristome simple, straight, 

 its columellar margin dilated, reflected. 



Fig. 356. 



Biilimtlllis siafflatus, Gould. — Shell ovoid, thin, milk white, 

 delicately and regularly striate ; spire short ; whirls five and a half, in- 

 flated, the last one more than three-fourths the length 

 of the shell, nearly symmetrical in form at both ex- 

 tremities ; aperture somewhat more than half the 

 length of the shell, narrow lunate ; lip simple ; colu- 

 mella broadly reflected over a narrow umbilical 

 fissure ; a thin glazing of callus on left lip. Length 

 1^, breadth seven-tenth inch. 



Inhabits Lower California. {Gould.) 



Bulimus vesicaH», Gould, Bost. Journ. Nat. Hist. VI, 



375, pi. xiv, f. 1 (1853).— Pfeiffek, Mon. Hel. 



Viv. IV, 467.— Gabb, Am. Journ. Conch. Ill, 



237, pi. xvi, f. 6 (1867). 

 Bulimus suffiatHs, Gould in litt. — W. G. Binney, Terr. 



Moll. IV, 25.— Pfeiffer, Mai. Blatt. 1859, 45. 

 Mormus sufilatus, Tryon, Am. Journ. Conch. Ill, 172, pi. xiv, f. 6 (1867). 



An outline of Dr. Gould's figure is given above. Specimens 

 lately collected by Dr. Gabb from La Paz are quite solid, and 

 have a thickened peristome. 



Bulimuhis sufflatits. 

 [GouLU ] 



Fig. 357. 



Buliinillus pilllla, W. G. Binney. — Shell globose, in- 

 flated, umbilicated, thin, with longitudinal wrinkles, chalk- 

 colored ; apex obtuse ; whirls four, convex, the last very 

 inflated, equalling ten-elevenths the length of the whole shell ; 

 columella simple, arched ; aperture oblique, rounded ; peri- 

 stome simple, acute, its columellar end expanded so as parti- 

 ally to cover the umbilicus. Length 22, breadth 7 ; of aperture, 

 length 9, breadth 6 mill. 



