42 DRYM BUS, MEXICO AND CENTRAL AMERICA. 



Normal form. Sculpture strong; aperture about ^. the length of the 

 shell ; large (length about -1<> mill.). 



. (Fig. 20.) Pale lilac, with a few narrow brownish streaks. 

 (Pfr., Monogr. ii, p. 56, form a ; HEKVE, loc. cit. fig. 211 c ; Des- 

 hayes, loc. cit. p. 48, troisieme variete.) 



N. Guatemala: Vera Paz. (by error " Vcra Cruz" in Mono- 

 graphia); Coban (Salvin, Bocourt). Central (,'inttrmaln : Depart- 

 ment of Salama (Morelet); San Geronimo near Salama (Champion). 



b. (Figs. 21-24). Pale lilac, with interrupted bluish bands (Pfr. 

 Monogr. Ilelie. Vivent. ii. p. .">('., form ,i t and in Philippi, loc. cit. 

 middle fig.; Reeve, loc. cit. fig. 211 b; Deshayes, loc. cit. pi. 111. 

 fig. 12, 13; Fisch. & Crosse, loc. cit. p. 481 ; Martens, fig. 11). 



North Gii'ifi'iixila: Vera Paz (Delattre). Central Gmiti'innla : 

 San Geronimo (Champion). 



c. (Figs. 15, 1C). Uniform straw colored or whitish, the columella 

 violaceous. (Pfr. Monogr. Ilelie. Yivent. ii, p. 56, form ;,and in 

 Philippi, loc. cit. right Jig.; Reeve, loc. cit. fig. 21 la; Deshayes, loc. 

 cit. pi. 141), figs. 12, 13; Martens, fig. 12). 



North Guatemala: Vera Paz (Delattre); Cn//<i/t (Salvin, Boconrt, 

 Conradt). Nicaragua (Janson). 



Var. hiabundus Mai-tens. Smoother, aperture about ^ the length 

 of shell; small (length about 30 mill.). 



d. "White, with 3-5 wide purple-brown bands (fig. 17-1H). 



e. uniform white (fig. 28). 



II '. (Inuli'iiKiln : <'crr<> /^/////(Champion). 



D. CIIIAPAM-N-K (Pfeitl'er). PI. 8, figs. 27, 29-33. 



Shell narrowly perforate, ovate-conic, rather solid, striate and de- 

 rn--alcd by very line spiral stria' ; dull whitish, the spire conic with 

 slightly convex outlines, apex rather acute, suture liiihily impres.-ed, 

 very finely serrate. Whorls 5J,, a little convex, the Ia>t longer limn 

 the vpire, ax-ending slightly in front, suhcompressed ;it base. Colu- 

 inella thread-like, slightly arcuate. Aperture oblique, oval ; shining 

 white inside; peri.-lnme simph^ the outer margin >lronglv dilated 

 below, expanded; columellar margin dilated aliove. All. :!."i, diam. 

 {\, length of aperture 21 mill. (/'//.) 



States of Chiapas and l'>rn ''/>/, Mc.rico. 

 /sts I'l if. in Malak. IJIiitl. xiii, p. S 1 (iSl'.l'i); 



