16 BULIMULUS-SCUTALUS. 



keeled, the keel filling the suture. The granulation is decidedly 

 finer than in B. proteus, but the apical sculpture is the same as in 

 that species. In B. proteiformis the aperture is larger in proportion 

 to the shell, the form is much more slender and the sculpture dif- 

 ferent. B. rhodolarynx Reeve has the aperture much more rounded 

 and the umbilical excavation smaller. 



This shell is from the country of the similarly shaped Neopetrceus 

 species, but it differs totally from them in the sculpture of the api- 

 cal whorls, which is like that of B. proteus. 



The type is No. 104877, U. S. National Museum (Lea collection). 



B. VERSICOLOR (Broderip). PL 1, figs. 7, 11, 12, 13, 14. 



Shell ovate-turrited, umbilicate, rather thin. Whitish marked 

 with brown in various patterns : (a) five-banded, the bands much 

 interrupted and spotted, a narrow one below suture, a very broad 

 band extending nearly to periphery, followed by a narrow girdle 

 between two white bands, below which is a wider basal band and an 

 umbilical crescent; (&) irregular longitudinal stripes, continuous or 

 anastomosing, without light spiral bands, and often coarsely mottled 

 with opaque white. Surface apparently smooth, but under the lens 

 seen to be decussated and weakly granose. 



Aperture about half the length of shell, as vividly colored as the 

 outside; peristome well expanded, the parietal callus thin. 



Alt. 25-27, diam. 14 mill. 



Peru, Mongon, near Casma, found on bushes (Cuming) ; Truxillo 

 (Jelski) ; Lima, among rocks (Paz and Martinez) ; Santos (Beechey). 



Bulinus versicolor BROD., P. Z. S., 1832, p. 108. SOWB., Conch. 

 Illustr., f. 16, 16*. Bulimus versicolor DESH. in An. s. Vert., viii, p. 

 268 ; in Fer., Hist., p. 70, pi. 139, f. 13, 14, 17-19. REEVE, Conch. 

 Icon., pi. 19, f. 113. PFR. in Conchyl. Cab., p. 258, pi. 70, f. 5, 6 ; 

 Monogr., ii, p. 61. HIDALGO, Viaje al Pacif., Mol., p. 110. LUBO- 

 MIRSKI, P. Z. S., 1879, p. 724. Helix versicolor ORB. not Born. 

 Bulinus mutabilis SOWB., Conch. Illustr., f. 15; Zool. Beechey's 

 Voy., p. 145, pi. 38, f. 20. Bulimus larians Sowb., KUSTER, Con- 

 chyl. Cab., p. 41, pi. 13, f. 3, 4. 



Much like B. mutabilis in form, but smoother, and not having the 

 same color patterns. 



Var. CALLAOENSIS Pilsbry, n. v. PI. 1, fig. 15. 



Solid and heavy, obliquely streaked and with transverse mottling 

 of gray on a whitish ground. Alt. 32 to 33, diam. 16 to 17 mill. 



Callao, Peru. 



