SUBULINA.—PSEUDOSUBULINA. 301 
Stenogyra (Obeliscus) rangiana, v. Mart. in Albers’s Die Helic. ed. 2, p. 264 *. 
Subulina rangiana, Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p. 638 °. 
Hab. Mexico (Linden 1-5), 
It is strange that no more specimens of this comparatively large shell (length 
39-42 millim.) have been found by any subsequent collector; the Mexican habitat 
appears, therefore, to require confirmation. As regards its systematic position, it 
approaches by the size, solidity, and colour, and by the rectilinear columella, nearer 
to the group Obeliscus, which belongs to the South-American continent. 
PSEUDOSUBULINA. 
Subulina, Sect. I. Species Costulate, and Sect. II. Species Costulato-striate, Fischer & Crosse, Miss. 
Scient. Mex., Mollusca, i. p. 632 (1877). 
Pseudosubulina, Strebel, Beitr. Mex. Land- und Siissw.-Conch. v. p. 117 (1882). 
Shell turrite, vertically sculptured, glossy; columellar margin straight, slightly 
notched near the base. ‘Teeth of the radula in very oblique rows, lateral teeth 
elongate, entire or bifid at the tip, median tooth and jaws rudimentary. (Strebel, 
loc. cit. p. 118, t. 18. figg. 5-8.) 
So far as at present known, the genus is confined to Mexico and Central America. 
Pseudosubulina should be placed in the family Agnatha, after Salasiedla, antea, 
p. 83, according to the structure of its oral organs; but as this character was not 
sufficiently known to me when dealing with that family, I am compeiled to leave the 
genus near Subulina, which has a very similar shell, a position also assigned to it by 
Fischer and Crosse, and even Strebel. 
1. Pseudosubulina berendti. 
Achatina berendti, Pfr. Malak. Blatt. ix. p. 98 (1862)'; Monogr. Helic. Vivent. vi. p. 237°. 
Subulina berendti, Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p. 635, t. 26. figg. 1, la, 6 
(not adult) *. . 
Pseudosubulina berendti, Strebel, Beitr. Mex. Land- und Siissw.-Conch. v. p. 117, t. 7. figg. 7, 7 a, 
t. 17. fig. 2 (aperture), t. 18. figg. 5-8 and 23.4, B, c (radula and genital organs) *. 
Slenderly turrite, densely costulato-striate, shining, yellowish brown; 12-124 whorls, the uppermost forming 
a blunt subglobular apex, the following moderately convex, with rather deep sutures, which appear dark 
in places by adhering dirt, the last whorl gradually narrowing beneath, smooth at the base, imperforate. 
Seen from the dorsal side, the last whorl is a little more than one-fourth. of the whole length and equal to 
the diameter. Aperture narrowly oval; columellar margin somewhat concavely arched, whitish, with a 
nearly vertical distinct notch at the lower end. 
Length 123-13, diameter 23-3 millim.; aperture 23 long, 13 broad. 
Hab. E. Mexico: Orizaba (Berendt!?%); Pacho, Soncoautla, Consolapa, and Dos 
Arroyos, all near Jalapa (Estefania Salas *); Las Vigas (Hoge). 
