OMPHALINA. 111 
Testa umbilicata, depressa, tenuis, nitida, levissime striatula, obscure lutea, concolor; spira convexiuscula, 
sutura striolata; anfr. 5, convexi, regulariter crescentes, ultimus rotundatus; umbilicus angustus 3 
apertura lunato-rotundata; peristoma simplex, acutum (intus albo-labiatum), margine columellari brevis- 
sime reflexo. 
Diam. maj. 15, min. 14, alt. 8 millim.; apert. diam. 8, lat. obliqua 7 millim. 
Hab. Ki. Mexico: Las Vigas, on the edge of the plateau N.W. of Jalapa (Hége) ; Jalapa 
and probably also Nacimiento de Quilate near Misantla (Strebel 2). 
Nearly allied to O. bilineata, but distinct in shape, by more convex whorls and a 
larger aperture ; it is also of a deeper brownish-yellow colour, and is without bands. 
The sculpture—very light radiating striae, more distinct immediately at the suture, and 
very fine, scarcely (and not everywhere) visible spiral linee—is essentially the same as 
in O. bilrneata. 
The apex is usually somewhat worn, and a little paler than the rest of the upper 
surface ; but it is not so distinctly whitish and opaque as is generally the case in 
O. bilineata. In one specimen, the largest of all, there is a somewhat thickened 
whitish inner lip within the aperture, and in some others, of rather smaller size, there 
are faint traces of such a lip, which seems to be repeated if the nearly full-grown 
animal is interrupted in its growth; but as the lip is wanting in some other specimens, 
it is not to be relied upon as a specific character. 
Fischer’s* figure represents a shell even somewhat more convex than the specimens 
which I have before me. He gives no distinct locality; but it is probable that his 
specimens were collected by Sallé at Cordova, with the true O. bilineata. 
9. Omphalina veracruzensis. (Tab. VI. figg. 8, 8a, J.) 
a. typica. 
Helix veracruzensis, Pfr. P. Z.S. 1856, p. 318’; Monogr. Helic. Vivent. iv. p. 78° (nec Fisch. & 
Crosse). 
Hyalina (Mesomphix) veracruzensis (Pfr.), v. Mart. in Albers’s Die Helic. ed. 2, p. 71°. 
Testa umbilicata, depressa, tenuis, valde nitida, levissime striatula, prope suturam distinctius striatula, pallide 
flava vel rubello-cornea; spira convexiuscula, sutura subcrenulata; anfr. 43-5, planiusculi, ultimus 
latus, non descendens, depresse rotundatus; umbilicus latiusculus; apertura lunato-ovalis; peristoma 
rectum, margine columellari arcuato-declivi, vix reflexiusculo. 
Hab. FE. Mexico: Cordova (Sallé ! 23). 
b. jalapensis. 
Zonyalina jalapensis, Strebel, Beitr. Mex. Land- und Siissw.-Conch. iv. p. 15, t. 2. figg. 11, lla, 
t. 8. fig. 5 (anat.), t. 9. figg. 7 (radula), 19 (jaw) *. 
Hab. E. Mexico: environs of Jalapa, especially in the wood of Pacho, also at Conso- 
lapa and Soncoautla near Coatepec, and at Dos Arroyos, between Jalapa and 
Naolingo (Strebel 4); Jalapa (Hoge, F. D. Godman). 
N. GuatemaLa: Coban (Sarg *). 
