PROSERPINA. 45 
Proserpina eolina, Pfr. Monogr. Helic. Vivent. iii. p. 290°. 
Ceres eolina, Gray, P. Z.S. 1856, p.102*; Pfr. P.Z. S. 1856, t. 35. figg. 28, 24°; Novit. Conch. 
i. p. 92, t. 25. figg. 1-3 °. 
Ceres eolina, Pfr. Monogr. Auric. Vivent. p. 168’. 
Hab. E. Mexico: Mexico 3 (Férussac*), State of Vera Cruz (Sallé1); Cerro de Plumas, 
near Cordova (fHége). 
2. Proserpina (Ceres) sallezana. 
Ceres salleana, Gray, P.Z.S. 1856, pp. 100, 102 (woodcut of the radula)*; Pfr. Monogr. Auric. 
Vivent. p. 168°; Monogr. Pneum. Vivent. iv. p. 295 °. 
Proserpina (Ceres) salleana, Pfr. P Z. 8. 1856, p. 322, t. 35. figg. 21, 22*; Novit. Conch. i. p. 93, 
t. 25. figg. 4-6°. 
Hab. E. Mexico: Cordova, State of Vera Cruz, in dense woods under leaves (Sallé 17° *); 
Huatusco, barranca de Dos Puentes (Mohr*); Cerro de Plumas, with the preceding 
and in greater number (/dége). 
Colour on the whole and disposition of the lamelle quite the same as in the pre- 
ceding ; perhaps only a sexual difference. 
Subgen. PRosERPINELLA, Bland. 
Proserpinella, Bland, Ann. Lyc. N. York, viii. p. 157 (1865). 
3. Proserpina (Proserpinella) berendti. 
Proserpinella berendti, Bland, in Ann. Lyc. N. York, viii. p. 157, fig. 2 (1865)*; Strebel, Abhandl. 
Geb. Naturw. Ver. Hamb. vi. 1, p. 11, t. 4. fig.5°; Pfr. Monogr. Pneum. Vivent. iv. 
p- 297°. 
Hab. E. Mexico: Mirador, Atlantic slope, 3000 to 4000 feet (Berendt | 3, Strebel), 
GASTROPODA PULMONATA MONOICA. 
Sexes united. No operculum. 
STYLOMMATOPHORA. 
Two pairs of feelers, the eyes on the tip of the upper ones. 
Fam. AGNATHA. 
No jaw. Teeth of the radula aculeiform, in oblique rows, median tooth very 
small or absent. 
