234 KHODEA. 



ate; whorls 6 including the nucleus, moderately convex, 

 brilliantly glossy, subplicate below the suture. Color trans- 

 lucent greenish-black, the last whorl marked with a dis- 

 tinctly denned white band. Columella subreflexed, white. 

 Lip simple, acute. Aperture somewhat narrowed towards 

 the base. Length 13 mm. (Dkr.) . 



Colombia: Pasto, in damp woods (F. C. Lehmann). 



Bulimus albo-balteatus DKR., Jahrb. d. D. Malak. Ges. 

 ix, 1882, p. 378, pi. 11, f. 7, 8. 



The white belt of the last whorl is largely concealed on 

 the upper whorls. In the single specimen taken, there were 

 two shining yellowish-white pearl-like eggs, 2 mm. in 

 diameter. 



9. S. VESPERUS (Jousseaume). PI. 37, fig. 91. 



Shell ovate-acuminate, thin, very glossy, obsoletely stri- 

 atulate, greenish-black with a single white zone. Spire 

 rather long conic, the apex obtuse. "Whorls 6, a little con- 

 vex, the last ample, a little descending in front. Aperture 

 oval ; peristome simple, acute ; columellar margin whitish, 

 straight. Length 17, diiam. 8, aperture 8.5 x 4 mm. (Jouss.}. 



Ecuador: Los Puentos, near Quito (A. Cousin). 



Mesembrinus vesperus Jouss., Bull. Soc. Zool. de France 

 xii, 1887, p. 168, pi. 3, f. 2. COUSIN, t, c. p. 234. 



This species, of which but one example was taken, evidently 

 stands close to S. albo'balteatus, differing in little except the 

 larger size. 



Genus RHODEA H. & A. Ad. 



Rhodea H. & A. ADAMS, Genera of Recent Mollusca ii, 

 p. 135, for calif ornica Pfr. (Feb. 1855). CROSSE, Journ. de 

 Conchyl. 1876, p. 5. SYKES, Journ. of Malaeol. viii, 1901, 

 p. 20 ('catalogue) . 



The shell is imper'forate, eiihcr drxtral or sinistral, pillar- 

 shaped or tapering, with obtuse smooth apex; the earlier 

 whorls are convex, the lalcr flat or concave, last whorl 

 acutely earinate in the middle, deeply concave below the 

 keel. The aperture is oblique, sub triangular, channelled at 



