233 
rate generically those in which the fissure is very obvious, in the 
labrum, under the name of Hdicina, from those of which the la- 
brum is simple or nearly so ] and to the latter the name of Oligyra 
ould be retained, under which name I described the animal, till 
hen entirely unknown. 
Glandina. — Shell subturriculated, oblong-sub oval, somewhat 
fragile, terrestrial, simple ; front of the shell gradually attenuated 
0 the base of the columella ; aperture unarmed, rather narrow, 
nearly longitudinal ; labrum simple, a little undulated ; columella 
incurved, truncated at base. 
Ohs. Conchologists differ much in the arrangement of this small 
group of shells. Chemnitz refers them to Bulla, and Buccinum ; 
Gmelin and Dillwyn to Bulla, Helix and Voluta, and the former 
has even placed one specimen in Stromhus ; Bruguiere to Bulimus ; 
Blainville and Sowerby to AcJiatina ; and Ferussac to a subgenus 
of Helix. Montfort who, for the period in which he published, 
formed genera with a profuse hand, was the first to separate this 
group from all others. He distinguished it by the name of Poly- 
phemus, which we regret that we cannot adopt, inasmuch as it was 
preoccupied by Muller for a genus of Crustaceous animals, and is 
still in use. It is to Schumacher that we are indebted for the 
present generic name, to which we are not aware of any objection. 
With respect to the characters of the shell, there can be no doubt 
that Glandina is very closely allied to Achatina, and notwith- 
standing the difference which really exists in the general habit, in 
the labrum a columella, it would coalesce with it, were it not that 
the inhabitant possesses characters which cannot justify the union. 
Ferussac was aware of these distinctions, and after extracting 
what we formerly published relative to the characters of the ani- 
mal, he states, Si cependant on les reconnoit dans toutes les 
autres especes du groupe auquel elles appartiennent, ou devra en 
faire un genre apart, oil Faiguillette et quelques unes des especes 
analogues, que nous y reunissons, entreront par Finfluence des 
rapports generaux de leur coquille,^^ and Be toutes les especes 
que nous reunissons dans les helix, aucunes, sans doute, n^offrent 
des caracteres dissemblance aussi prononces.’^ 
Having unfortunately mislaid a sketch of the animal, taken 
[* Am. Con. ii. — E d.] 
18 
