122 CLASS III. GASTEROPODA. ORDER VII. PECTINIBRANCHIATA. 
logists of that country to propose several new genera; one, for instance, 
by Lea under the title of fo, and another by Say under that of Anculotus, 
both of which may be esteemed as good and important sections of the 
genus under consideration. 
The shell of Melania may be described as being more or less turrited, 
having the outside generally wrinkled or nodulous, and for the most part 
covered with a blackish brown epidermis ; the spire is in some instances 
very short, and in most cases more or less eroded at the summit; the 
columella is smooth, and curved inwards ; the aperture is entire, ovate, 
or oblong, sharp above, and occasionally sinuated with an indistinct 
canal beneath ; and the lip is simple and rather sharp. The operculum 
is horny and spiral. 
Examples. 
Pl. CXCIV. Fig. 1. 
MELANIA AMARULA, Lamarck, Anim. sans vert., new edit., vol. viii. 
p. 431. Encyclopédie Méthodique, p. 458. f. 6. a, b. 
Helix amarula, Linnzeus. 
Buceinum amarula, Miller. 
Bulimus amarula, Bruguiére. 
Pl. CXCIV. Fig. 2. 
Me ania vARiIABILIS, Benson, Asiatic Journal, August 1835. 
Pl. CXCIV. Fig. 3. 
ME ania susuLata, Sowerby, Genera of Shells, No. 22. 
Pl. CXCIV. Fig. 4. (fossil.) 
MELANIA cosTELLATA, Lamarck, Anim. sans vert., new edit., vol. viil. 
p. 444. Ann. du Mus., vol. iv. p. 480, and vol. viii. pl. 60. f. 2. 
Deshayes, Désc. des Coquilles fossiles, vol. ii. p. 113. pl. 12. f. 5, 6, 
9 and 10. 
Melania variabilis, Defrance. 
