316 DRYM.EUS-STENOSTYLUS. 



oblong-oval, with a pearly luster within ; peristome simple, unex- 

 panded. Alt. 31, diam. 14; alt. of aperture 17 mill. (Pfr.). 



Andes of Colombia (Cuming coll.). 



Bulimus meleagris PFR., P. Z. S., 1851, p. 157 ; Conchyl. Cab., p. 

 81, pi. 21, f. 24, 25 ; Monogr., iii, p. 382. 



D. FILARIS (PfeifFer). 



Shell imperforate, ovate-conic, thin, irregularly plicate-striate, 

 diaphanous, dull white, ornamented with wide, angular, blackish 

 streaks, on the last whorl forming obsolete bands. Spire conic, a 

 little acute ; suture crenulate ; whorls 5i, a trifle convex, the last 

 equal in length to the spire, dilated above and below. Columella 

 strongly receding, thread-like. Aperture oblique, oval, with a some- 

 what pearly luster within ; peristome simple, unexpanded, subeffuse 

 at base. Alt. 26, diam. 12 ; aperture 14 mill, long, 8 wide below 

 the middle (Pfr.)- 



Habitat unknown (Cuming coll.). 



Bulimus filaris PFR., P. Z. S., 1853, p. 50 ; Monogr., iii, p. 653. 

 Orthalicus (Plectostylus) hilarus H. & A. AD., Gen. Rec. Moll.ii, p. 

 155. 



An unfigured species of which the affinities are not known. Prob- 

 ably a Plectostylus, though it might belong to the section Stenostylus. 



D. COLMEIROI (Hidalgo). PI. 46, figs. 54, 55. 



Shell imperforate, Succinea-like, ovate-conic, very thin, somewhat 

 shining; hyaline, closely and obliquely ornamented with irregular, 

 obsolete, opaque-whitish wrinkles. Spire conoid, the apex a little 

 obtuse, pale corneous ; suture simple. Whorls 5, a little convex, 

 increasing at a moderate rate, the first seen under the lens to be most 

 minutely decussated, the last whorl somewhat descending in front, 

 rotund at base. Columella hair-like, somewhat obliquely arcuate, 

 its spiral trend visible (from below) as far as the apex. 



Aperture oval, colored within like the outside, five ninths the 

 length of the shell ; peristome simple, unexpanded, acute, the mar- 

 gins somewhat approximating, right margin regularly arcuate, col- 

 umellar margin indistinct. Alt. 19, diam. 10 mill. (Hid.). 



Baeza, Ecuador (Martinez). 



Bulimus colmeiroi HIDALGO, Mol. Viaje al Pacifico, p. 122 (1869) ; 

 Journ. de Conchyl., 1875, p. 129, pi. 7, f. 3. PFR., Monogr., viii, p. 

 125. 



