16 BOTHRIEMBRYON. 



or bands of brown. Whorls 6, convex, submargined and crenulated 

 ("jimbriatis") above at the suture. Spire moderate and obtuse. 

 Aperture elliptical-ovate, the throat white; columella straight, outer 

 lip acute. 



There are two varieties : () Shell with a brown band below the 

 suture arid at the base, and scattered, somewhat fasciculated, con- 

 tinuous brown stripes; length 10, width 6 lines (about 20, 12 mill.). 

 (b) Shell with a single obsolete, interrupted, brown band below the 

 suture, and two in the middle of the last whorl; length 7, width 5 

 lines (14, 10 mill.). (Menke.} 



Western Australia: Summit of Darling's Range (Preiss). 



Bulimus bulla MENKE, Moll. Nov. Roll: Spec., p. 7 (1843). Of. 

 Cox, t. c., p. 73, and SMITH, t. c., p. 95. 



This species has not been figured, and is unknown to later authors 

 except by Menke's description. It is probably near B. baconi. 



B. BACONI (Benson). PI. 2, fig. 42. 



Shell perforate, ovate, thin, closely striale, the upper part of the 

 whorls granulated by spiral striae, silky, pellucid; buff, with two 

 chestnut bands. Spire convexly conic, the vertex obtuse, papillar. 

 Whorls 5, a little convex, crenulated at the suture, the last one in- 

 flated, slightly longer than the spire. Aperture slightly oblique, 

 oval, colored within like the outside, but paler; peristome simple, 

 unexpanded, the right margin somewhat spreading above, columellar 

 margin brown-purple, dilated and reflexed above. Length 24, diam. 

 14, longest axis of aperture 13^, width 8 mill. (Pfr-.). Alt. 23, 

 diam. If), alt. of aperture 12, diam. 9 mill. (Bens.). 



AVestern Australia : Darling's Range, six miles, from Henley Park, 

 on the Avon Ricer (Dr. Bacon). 



BvUniiis baconi BENSON, Ann. and Mag. Nat. Hist. (2 ser.), xiii, 

 p. 99 (Feb., 1854). PFU., Monogr. iv, p. 479. Cox, Mon. Austr. 

 L. Sh. p. 73, pi. 19, f. 13. Bulliints (Lfparus) baconi E. A. 

 SMITH, Proc. Malac. Snc. i, p. 95, pi. 7, f. 32. 



Granulate below the sutures, as in most Western Australian forms, 

 but conspicuously banded, and with silky luster. I have not seen 

 specimens. It may be the B. bulla of Menke. 



t 



B. ANGASIANUS (Pfeiffer). PI. 3, figs. 54, 55. 



Shell imperforate, ovate-conic, thin, sculptured with close longi- 



