52 5ULIMULUS-CENTRAL AMERICAN. 



very close, fine epidermal spiral strice. Spire conic, the apex obtuse, 

 nepionic whorls superficially and microscopically granose-wrinkled 

 and spirally incised-striate. Whorls about 5 2, slightly convex, the 

 last large, rounded. 



Aperture ovate, about one-half the shell's length, outer lip acute 

 and not expanded, columellar lip reflexed and dilated above. 



Alt. 14, diam. 8'2 mill. ; alt. of aperture 7 mill, (specimen). 



Alt. 18, diam. 9 mill. ; alt. of aperture 8| mill. (Pfr.*). 



Cordova, State of Vera Cruz (Salle) ; Orizaba (Hegewisch, 

 Berendt and others), Mexico. 



Bulimus coriaceus PFR., P. Z. S., 1856, p. 318; Monogr., iv, p. 

 504. Bulimulus coriaceus CR. & FISCH., Moll. Terr, et Fluv. Mex., 

 p. 552, pi. 21, f. 7, 7a. MARTENS, Biol. Cent. Amer. p. 248. Buli- 

 mus behrendti PFR., Malak. Bl., viii, 1861, p. 168. Bulimus berendti 

 PFR., t. c., pi. 3, f. 4, 5 ; Monogr. vi, p. 149. Bulimulus coriaceus var. 

 berendti MARTENS, Biol. Centr. Amer., p. 249. Not B. berendti CR. 

 & F., Moll. Mex., p. 554, pi. 21, f. 8, 8a. 



The chestnut band (fading on its upper edge into the light ground- 

 color) above the sutures of the whorls of the spire, and the stout 

 contour are good specific marks of this species, which is quite dis- 

 tinct and easily recognized for a Leptomerus. 



Von Martens is doubtless correct in uniting berendti to coriaceus. 

 A good series of both, including part of the original lot of coriaceus 

 collected by Salle, and numerous berendti from Orizaba, the type 

 locality, does not permit me to separate the two even as varieties. 



Specimens labelled "Guatemala, Sarg" are also before me. 



B. UMBRATICUS (Reeve). PI. 10, fig. 88. 



Shell subperforate, ovate-conic, rather thin, striatulate, somewhat 

 pellucid, whitish, somewhat streaked with brown above. Spire long- 

 conic, rather acute. Whorls 6, a little convex, the last about four- 

 ninths the total length, rotund at base. Columella arcuate, some- 

 what twisted above ; aperture oblique, oval ; peristome simple, un- 

 expanded, the right margin lightly arcuate, columellar margin 

 dilated, reflexed and subappressed. Alt. 15 i, diam. 8 mill. ; aper- 

 ture 7 2 mill, long, 4 wide (P/V.). 



Central America (Cuming Coll.). 



Bulimus umbraticus RVE., Conch. Icon., pi. 77, f. 559 (August 

 1849). PFR., Monogr., iii, p. 414. 



