1 66 BULIMULUS-BOSTRYX-LISSOACME. 



B. FLAGELLATUS D. Sp. PI. 50, figS. 44, 45. 



Shell umbilicated, ovate-oblong, solid opaque and earthy, white 

 with irregularly spaced dull reddish or purplish longitudinal streaks, 

 sometimes wanting. Surface lusterless, with weak, coarse indistinct 

 growth-wrinkles. Spire long, the apex obtuse and smooth. Whorls 

 7?, quite convex, the last very convex. Sutures deeply impressed. 

 Umbilicus rather narrow, often purplish inside. 



Aperture contained about 2J times in length of shell, short, oval, 

 rose-purple or white within ; peristome simple and unexpanded, the 

 columellar margin dilated above, white, fleshy or purplish ; parietal 

 callus thin. 



Alt. 25, diam. 12, alt. of aperture 10 mill. 



Alt. 20, diam. 9, alt. of aperture 7i mill. 



Balsas, valley of Maranon R., Peru (H. W. Webb). 



A very solid, earthy shell, irregularly streaked with light reddish, 

 and often with some purplish streaks. Besides the tray of 5 typical 

 specimens from Balsas, we have a series of 7 without other locality 

 than "Peru." These are white, a few showing some streaks just 

 behind the lip ; the apertures dull purplish or nearly white. With 

 the general figure of B. limonoicus Orb., this is a much more solid 

 species, larger, and with more whorls. B. scutulatus is closely allied, 

 but in that the aperture is much narrower in proportion to its length, 

 and the columellar lip of a very different shape. B. andicola Pfr., 

 a similarly marked species, has the spire more slender and is said to 

 be sculptured with close concentric lines. 



B. ANDICOLA Pfeiffer. PI. 50, fig. 46. 



Shell perforate, turrited-conic, solid; seen under the lens to be 

 sculptured with close concentric lines ; opaque, shining ; white, irre- 

 gularly ornamented with brown linear streaks. Spire lengthened, 

 rather acute. Whorls 7, a little convex, the last about equal to 

 three-sevenths the shell's length, rotund at base. Columella a little 

 receding below. Aperture oval-oblong, the peristome simple, acute, 

 columellar margin vaultingly reflexed above, forming a narrow per- 

 foration. Alt. 24, diam. 11 mill. ; aperture, alt. 11, width 5k mill. 



- 



Andes of Bolivia (Cuming coll.). 



Bulimus andicola PFR., P. Z. S., 1846, p. 115 ; Monogr., ii, p. 214 ; 

 vi, 143. REEVE, Conch. Icon., pi. 55, fig. 364. 



