Ml DKVM.l.rs, MEXICO AM) CKNTKAL AMERICA. 



Jr. Merico : Chtlpancingo, State of Guerrero, at an altitude of 

 4GOOft. (H. II. Smith.) 



Otostomns mon'fi//cf//s MAUTENS, Biol. Centr. Amer., p. 2*28, pi. 

 14, f. 9, 10 (Sept., 1893.) 



A very distinct species, allied to D. livescens, but thinner, larger, 

 with more ventricose whorls and larger aperture. One of the speci- 

 mens before me shows scarcely any of the scattered dots mentioned 

 above, and in another the peripheral band is only faintly indicated. 

 The apex shows the fine grating characteristic of Drymceiis. V mi 

 Martens writes: 



" V;irie> somewhat in the more or less pure whitish, yellowish or 

 slightly reddish hue of the general coloration, in the more or less 

 broad and dark peripheral band, in the presence, disposition, and 

 number of the black points, which are either arrow-like or rounded, 

 and in the presence or absence of a large brown streak near the 

 aperture; the base of the shell near the umbilical cleft is in some 

 examples bright rose-colored. The uppermost whorl is curiously 

 punctured." 



I). I.IVESCKN-S (Pfeiffer). PI. 4, figs. 7G-81. 



Shell scarcely perforate, ovate- turret ed, smooth, livid-whitish 



marked with a few brownish streaks. Spire long, acute. "Whorls 7, 

 nearly Hat, the last shorter than the spire. Aperture narrow, oblong, 

 brownish inside ; peristome simple, the coluinellar margin slightly 

 revulute, covering the small perforation. 



Alt. 23, diam. 9, length of aperture 10, width ~t mill. ( I'/r.) 

 Central Mi'.rico : Trimaran. (Ilegewisch, I 'hde); Tecomavaca, in 

 the State of I'ni'lJu. S. E. of Telmacan, Cm-tux and Minmsu region 

 (Huge). \Y. Mi'.i-irn : < 'liiljxinriiHjo. in the State of (iin-rrcm (II. II. 

 Smith '. 



Hull,, nts Uri-smis I'll;., Symh. Hist. Helic. ii, p. -IS (1K4'2); 

 .Mi.iinirr. Helie. Vivent. ii, p. 17;"). KEEVE, Conch. Icon, v, />n/tmus, 

 \>\. 17, lig. 304. Pini.ii-iM, Aliliild. neuer C<mch. iii, p. DC., pi. 9, 



fig. 3 ItiiliiiiHX ( M<-x< >i<l>rii,nx) /insn/is Al.l'.l I:-. Die llelic. ed. 1, 

 ,7_Pii:. iii .Mahik. lilsilt. ii. p. !."* (\^'i). Ortli.i/n-iis (Me- 

 iis) lin-nri'iis II. iV A. A.DAM8, (><-i\. Kee. M<>11. ii, |). 1;")7. 



Bulimultu (Metembrintif) /t'ns<-< ,/s \'<>N M AI;I. in Albers' Die llelic., 

 ed. L ; , p. '-'I I ; .Mahik. I'.h.it. xii, p. i'7 ( L865). Fi8( n. ^ CKOSSE, 

 -. Seient. .M.-N. ; Mi.llusca i, p. "'4.'!. Bvlimnlut Kvesceru ^ \ IM.UKL, 



