236 RHODEA. 



f. 19. BLAND, Ann. Lye. N. Y. viii, p. 166, f. 10. Columna 

 (Rhodea) calif ornica H. & A. AD., Gen. Rec. Moll, ii, p. 135. 

 -BINNEY, Land and Fresh- Water Shells of N. A. i, p. 190, 

 f. 330. Elwdea calif ornica DOHRN, Jahrb. d. D. Malak. 

 Ges. ii, 1875, p. 308. Elwdea pfeifferi CROSSE, Journ. de 

 Conch, xxiv, 1876, p. 14, pi. 1, f. 1. PFEIFFER, Monogr. 

 viii, p. 255. 



This species was originally described from Cumingian ex- 

 amples supposed to be from Monterey, California, but Bland 

 ascertained the true locality to be Colombia. Figures 1, 3-6 

 represent shells from Marmato. Fresh shells are waxy-whit- 

 ish and a little transparent when immature, but the old 

 ones become quite opaque and pale yellowish. The striation 

 is dense and fine, very oblique and distinct. The stages of 

 growth have been described under the generic head. 



Reeve 's figure of the type is copied, pi. 38, f . 10. 



Crosse renamed the species on account of the erroneous- 

 locality implied by the original name. 



2. R. GERETI Jousseaume. PI. 38, fig. 7. 



Shell cylindric-turrite, rod-shaped, obliquely, closely and 

 very delicately striate; milk-white, with a thin deciduous 

 yellow cuticle. Spire many-whorled, slowly tapering, the 

 apex obtuse. Whorls 11, a little convex, regularly increas- 

 ing, separated by a deep linear suture ; the early whorls more 

 convex, the rest nearly flat; last whorl angulate-carinate, the 

 anterior part concave and very minutely striate, contracted. 

 Aperture triangular, the outer margin worn, columella 

 thickened, spirally twisted, ascending within, around a very 

 deep and narrow umbilicus. Length 16, diam. 3 mm. (Jouss.) . 



Colombia. 



Rhodea gereti Jouss., Bull. Soc. Philomath. Paris, ii, p. 

 38, pi. 1, f. 16 (1900). 



Smallest of the known Rhodeas. The unique example has 

 not completed the outer lip. 



3. R. WALLISIANA Dohrn. PI. 38, figs. 11, 12, 14, 15. 



Shell sinistral, cylindric-turrite, thin, closely obliquely 

 rugose-striate, chalky under a pale corneous deciduous cuticle 



