ACHATINA.— Plate XX. 
Pfeiffer, Pro. Zool. Soc. 1845, p. 138. 
Hab. Jamaica; Gosse. 
An interesting delicately ribbed shell, distinguished by 
its sharp acicular form. 
Species 115. (Mus. Cuming.) 
Achatina Californica. Achat, testd cylindraceo-elon- 
gatd, anfractibus tredecim, oblique creberrime striatis, 
basin versus subangulato-planatis, ultimo basi acute 
carinato, infra carinam peculiariter excavato, columella 
valde arcuatd, calloso-marginata, aperturd pared, sub- 
quadrald; cereo-albicante. 
The Californian Achatina. Shell cylindrically elon- 
gated, whorls thirteen in number, obliquely very 
closely striated, rather angularly flattened towards 
the base, last whorl sharply keeled at the base, pecu- 
liarly excavated beneath the keel, columella very 
much arched, callous at the edge, aperture small, 
somewhat square ; waxen white. 
Pfeiffer, Symbol®, vol. iii. p. 89. 
Hab. Monterey, California. 
This very remarkable species is mainly distinguished 
by the excavated and keeled growth of each whorl at the 
base. 
Pig. 116. (Mus. Cuming.) 
Achatina accincta. Already described and figured 
from a lighter specimen in the preceding plate, Sp. 101. 
For Sp. 116, see PI. XXIII. 
Pig. 117. (Mus. Cuming.) 
Achatina lubrica. Referred to the genus Bulimus , 
Sp. 645. For Sp. 117, see PI. XXIII. 
Species 118. (Mus. Cuming.) 
Achatina suturalis. Achat, testa oblongo-ovatd, spird 
bremusculd , conica, suluris imprmis, anfraclibus qum- 
que, convexis, lavibus, polilis, columella subrectd, trun- 
catd; corned, solidiuscula, pellucidd. 
The sutural Achatina. Shell oblong-ovate, spire 
rather short, conical, sutures impressed, whorls five 
in number, convex, smooth, pobshed, columella nearly 
straight, truncated ; horny, rather solid, transparent. 
Polyphemus suturalis, Pfeiffer, in Wiegman Archiv. 1839, 
p. 353. 
Glandina suturalis, Philippi. 
Hab. Cuba. 
An oblong transparent polished shell, belonging to the 
group Glandina of Dr. Philippi. 
