CONCHOLOGY. 

 PLATE CXXXIIL 



HELIX MELANOTRAGUS 

 BLACK-MOUTHED INDIAN SNAIL 



Univalve. 



generic character. 



Shell univalve, spiral, somewhat diaphanous, brittle : aperture 

 semilunar or roundish. 



SPECIFIC CHARACTER 

 AND 

 SYNONYMS. 



Shell globose- conoidal ventricose, imperforate, chesnut- brown 

 beneath, zoned with white : tip pale yellow : aperture transverse, 

 pillar and lip black. 



Helix Melanotragus : testa globoso-conoidea ; ventricosa, 

 imperforata, castaneo-fusca, inferne albo zonata, 

 apice luteo ; apertura transversa, columella labro^ 

 que nigris. 



Helix Melanotragus. Born Mus. p. 388. 



Helix Hsemastoma. Chemnitz Conch, 9. L t, 130. y: 1152. 1153. 

 Helix Senegalensis. Encychpedie Fr, 462. 4. a, h. 

 Helix Melanotragus. Dauben, Hist, Moll, pL 52. 4. 5. 6. 

 Helix Melanotragus, Helice bouc-noir. Lamarck An. sans Fert, 

 t. 6. p. 2. 70. 17. 



VOL. IV. L 



