BULIMULUS-BOSTRYX-GEOPYRGUS. 135 



The single species is anatomically known, and its relationships 

 are uncertain. Temesa has hitherto been associated with Balea,and 

 as originally proposed contained species of Perrieria and true Clau- 

 silia, besides the Peruvian form now regarded as type of the group. 



B. CLAUSILIOIDES Reeve. PI. 45, fig. 4. 



Shell sinistral, elongately turrited, somewhat cylindrical, com- 

 pressly umbilicated. Whorls 9, obscurely ribbed around the upper 

 part, longitudinally very closely and very minutely roughly striated. 

 Columella vertically reflected. Aperture somewhat square, the lip 

 simple. Mouse colored. Alt. 13 mill. (Reeve). 



Andes of Caxamarca, Peru, (TV. Lobb), 



Bulimus clausitioides REEVE, Conch. Icon., pi. 73, f. 523 (July r 

 1849) ; P. Z. S., 1849, p. 96.?? Balea clausilioides PFR., Monogr., 

 iii, p. 584 ; Conchy 1. Cab., p. 145, pi. 17, f. 34-37. Temesa clausi- 

 lioides H. & A. AD., Gen. Rec. Moll., ii, p. 175 (1855). PFR.- 

 CLESS., Nomencl. Hel. Viv., p. 364. 



This species does not seem to be allied to Balea (Temesa') funcki 

 Pfr. (Monogr., ii, p. 389), but to the narrow Peruvian Bulimuli, from 

 which it apparently differs mainly in being sinistral. It is known 

 to me from the figure and description only. 



The figures in the Conchylien Cabinet do not seem to me to 

 represent the same species. 



Section 5. Geopyrgus Pilsbry, 1896. 



Geopyrgus PILS., Nautilus, ix, p. 114 (Feb. 1, 1896). Pyrgus 

 ALB., Die Hel., 1850, p. 177. Not Pyrgus Hiibner, 1816. 



Shell high, turrited, regularly tapering, with many slowly widen- 

 ing whorls ; the umbilicus a mere chink behind the reflexed and ap- 

 pressed columellar lip ; outer lip not expanded. Type B. turritus 

 Brod. 



B. TURRITUS Broderip. PL 45, fig. 5. 



Shell turrited, Melania-shaped, solid, opaque and calcareous ; 

 whitish, often pinkish above, with four spiral chestnut bands, one 

 bordering the suture, two peripheral and one basal, the latter con- 

 cealed on the spire; apex purplish. Surface shining, smooth, 

 growth-lines rather faint. Spire regularly tapering, the apex ob- 

 tuse. Whorls 9-10, weakly convex, very regularly and slowly 

 widening, the last convex. Umbilicus a mere chink. 



