FAMILY 2. COLIMACEA. 85 
A removal has, however, been recently proposed by Dr. Beck, for reasons 
of so much consideration and importance, that the facts only require to 
be confirmed to be appreciated. The well-known and highly valued spe- 
cies, Achatina Priamus, is supposed by this writer to be really a marine 
operculated mollusk allied to Struthiolaria, a genus of Pectinibranchiata. 
In the absence of sufficient data confirmatory of this supposition, we have 
not ventured to act upon it; but if such is the case, and we think it 
highly probable, his genus Priamus should then be adopted. 
The shell of Achatina may be described as being ovate or oblong, and 
generally covered with an epidermis ; the spire is more or less elevated ; 
the aperture is entire, longitudinal, sometimes nearly orbicular, and the 
lip is thin, acute, and never reflected ; the columella is smooth, and trun- 
cated at the base. 
Examples. 
PINCLXXVE. Big. 1. 
ACHATINA PURPUREA, Lamarck, Anim. sans vert., new edit., vol. viii. 
p- 296. Lister, Conch., pl. 581. f. 35. 
Bulla purpurea, Chemnitz. 
Bulimus purpurascens, Bruguiére. 
Helix (Cochlitoma) purpurea, De Férussac. 
Pl. CLXXVI. Fig. 2. 
ACHATINA VIRGINEA, Lamarck, Anim. sans vert., new edit., vol. viii. 
ps 299. Lister; Conch:, pl. 15. f. 10. 
Helix virginea, Linneus. 
Helix (Cochlitoma) virginea, De Feérussac. 
Buccinum virgineum, Miiller. 
Bulla virginea, Chemnitz. 
Bulimus virgineus, Bruguiére. 
2 De Montford. 
Liguus 
