MOLLUSCA. 609 
Samm. 1883, p. 192, and 1889, p. 502°; Fischer & Crosse, Miss. Scient. Mex., Moll. ii. 
p. 452, t. 54. fige. 7, 7a, b4. 
Schasicheila minima (* Pfr.”’), Strebel, Beitr. Mex. Land- u. Siissw. Conch. iv. p- 98 (without 
description), t. 3. fig. 6 (1880) °. 
Conical-globose, almost smooth, yellowish. 
Diam. 44, alt. 3 millim. 
Hab. Mexico ®. 
Pfeiffer 1? did not know the habitat of this species: Paetel® gives ‘‘ Mexico.” ‘The 
specimen described and figured by Fischer and Crosse + was obtained from the dealer 
Gust. Schneider, with the locality Misantla, as given by Strebel. Strebel himself ® 
figures a Schasichila, without describing it, and without stating how much his figure 
was magnified. 8. fragilis, Pilsbry, possibly belongs to the same species, but it is 
somewhat larger than Fischer and Crosse’s specimen. 
PROSERPINA (p. 44). 
Proserpina (Ceres) eolina (p. 44). 
Ceres eolina, Fischer & Crosse, Miss. Scient. Mex., Moll. ii. p. 382, t. 54, figg. 2, 2 a-c’. 
To the localities given, add :— 
Hab. [E. Mexico:] Cerro de Palma*, Sierra de Matlaquihahuilt, near Toxpam 
(Sallé 8). 
Proserpina (Ceres) sallwana (p. 45). 
Proserpina (Ceres) salleana, Pilsbry, Proc. Acad. Phil. 1891, p. 332°. 
Ceres salleana, Fischer & Crosse, Miss. Scient. Mex., Moll. ii. p. 383, t. 54. figg. 3, 3a-d". 
To the localities given, add :— 
Hab. (E. Mexico:| Orizaba, both the red and the buff forms (Heilprin®); Cerro de 
Palma, on the ground, unaccompanied by P. eolina (Sallé’). 
2 (a). Proserpina (Ceres) nelsoni. 
Ceres nelsoni, Fischer & Crosse, Miss. Scient. Mex., Moll. 1. p. 668, t. 55. figg. 1, 2°; Dall, 
Nautilus, xii. p. 27 (1898) ®. 
“< More evenly divided by the keel, more depressed and larger ” than P. eolina or P. salleana, varying in colour 
from pale lemon to deep orange. 
Diam. 30, alt. 11 millim. 
Hab. N. Cenrrat Mexico: Pilitla near San Luis Potosi (EL. W. Nelson | 2). 
Proserpina (Proserpinella) berendti (p. 45). 
Proserpinella berendti, Fischer & Crosse, Miss. Scieut. Mex., Moll. i. p. 377, t. 54. figg. 1, la-d*. 
ig The name of this place was incorrectly given as “Cerro de Plumas ” for this and other species in the 
earlier part of this volume, as supposed by Fischer and Crosse. 
BIOL. CENTR.-AMER., Terr. and Fluviat. Mollusca, January 1901. oi 
