SIMIMJLOl'SIS. 219 



Caribbean Species. 

 S. VIXCENTINA E. A. Smith. PI. 63, figs. 65, 66. 



Shell orate, very thin, pale greenish-corneous, spire obtusely 

 conoid ; whorls 3, the first two sculptured with delicate, close, waved 

 striae, the first whorl involute at the apex; last whorl ample, deli- 

 cately plicate longitudinally, and transversely obsoletely substriate, 

 scarcely descending. Aperture inversely auriform ; peristome very 

 thin throughout. Length 13, diam. 10 mill. (Smith.) 



St. Vincent, Upper Richmond Valley, in damp forest, 2000 feet 

 elevation, on leaves of Artanthe (Piperacece). H. H. Smith. 



S. vincentina S.M., Proc. Malac. Soc. i, p. 305, pi. 21, f. 4, 5 (Oct., 

 1895). 



Only a single specimen was collected. The ovate form, rather 

 conical spire, and the peculiar fine sculpture of the two upper whorls, 

 distinguish this form from other species of the genus. (Smith.) 



I suppose Mr. Smith refers to spiral striae on the first two whorls; 

 if longitudinal striae are meant, the species would be referable to 

 Amphibulima, not Simpulopsis. 



Species of Mexico and Central America. 



S. SIMULA (Morelet). PI. 63, figs. 56, 57. 



Shell conic-globose, very thin, somewhat membranaceous, pellucid, 

 elegantly sculptured with slightly oblique longitudinal and rather 

 spaced folds; pale olivaceous-corneous. Spire shortly conoid, the 

 apex rather obtuse ; suture impressed. Whorls 4^, a little convex, 

 the earlier two nearly smooth, the last larger than the spire, ex- 

 panded and inflated. Aperture lunate*rotund, colored within like 

 the outside ; peristome simple, concolor, the terminations separated, 

 columellar margin arcuate, thin, basal and outer margins acute. 

 Length 11, diam. 9, length of aperture 7, width 6 mill. (F. fy C.). 



Peten, northern Guatemala, in woods, on the leaves of trees (More- 

 let). 



Bulimus simulus MORELET, Testacea Novissima ii, p. 11 (1851). 

 PFK., Monogr. iii, p. 383 (1853); iv, p. 450; vi, p. SO.Ortkalicus 

 (Plectostyhis) simulus ADS., Genera ii, p. 155 (1858). Bulimulus 



(Eudioptus} simulus ALBERS, Die Hel., edit. v. Mart., p. 223 



Simpulopsis? Simula PFR., Monogr. vii, p. 516 (1876) Simpulopsis 



