146 PR08ERPINID.E. 



numerous longitudinal series of teeth. Teeth 00 5T -5 -00 (fig. 2) ; 

 the central tooth oblong, distinct, with a broad simple reflexed 

 tip ; the first and second lateral teeth rather broader than the 

 central one, with a three-toothed recurved tip ; the third narrow, 

 elongate, with a slightly recurved end ; the fourth and fifth 

 much larger, oblong and irregular-shaped ; the fourth about 

 half as wide as the fifth, with three or four dentations on the 

 inner side of the upper edge ; the fifth very large, broad, with a 

 large subcentral reflexed lobe ; the lateral teeth are very nume- 

 rous, subequal, similar, compressed, transparent, with a recurved 

 tip, those of the inner teeth of the series being bifid. 



This genus is well distinguished from Proserpina by its habitus 

 and the characters of the shell. 



1. Cep.es eolunta. B.M. 



Shell imperforate, conoidally lenticular, rather thin, furnished 

 on the upper side with close-set wrinkles descending from the 

 right to the left side, rather shining, reddish ; spire very shortly 

 conoidal, slightly mucronate, sometimes marbled with brown ; 

 suture scarcely perceptible; whorls six, rather fiat, the last not 

 descending, furnished with a compressed, thin, sharp, elevated 

 keel, inflated beneath, smooth, covered with a whitish or yellow 

 shining callous coat ; aperture oblique, rather securiform, modi- 

 tied by six spiral, sharp lamellae, two on the body of the penul- 

 timate whorl, parallel to each other, one rather transverse on 

 the columella, three on the basal part, unequal, visible through 

 the shell ; peristome slightly thickened, with a beak formed by 

 the extremity of the keel. " Greatest breadth 23, least breadth 

 19, height 9 mill. 



Carocolla eolina, Duclos in Guer. Mag. 1834, pi. 30. 

 Helix (Helicodonta) eolina, Ferussac in Bull Zool, 1835, p. 12. 

 Odontostoma eolinum, Pfr. Mon. Helic. i. p. 11. n. 1. 

 Proserpina eolina, Pfr. in Chemn. ed. nov. Helix, p. 11. t. 100. 

 f. 10, 11 (from Gu'erin) ; Mon. Helic. iii. p. 290. n. 1. 



Albers, Helic. p. 134. 



H. and A. Adams, Gen. rec. Moll ii. p. 309. 

 Ceres eolina, Gray in Proc. Zool, Soc. 1856, Apr. 



Pfr. Mon. Auric, p. 168 ; Novit. Conch, i. p. 157. t. 25. f. 1-3. 



Hah. State of Vera Cruz, Mexico (Salle). 



2. Cebes Salleana. B.M. 

 Shell imperforate, conoidal, rather solid, sculptured above 



with striae of growth and finely granulated, yellow or rose- 

 red, covered partially with an opake, whitish, deciduous peri- 



