442 Zoological Society. 
tibus 8 planiusculis, ultimo 3 longitudinis subequante, antice medio 
impresso ; columelld verticali, ad basin aperture abrupte truncata ; 
aperturd angustd, oblongd ; peristomate albido-limbato, margine 
dextro antrorsum curvato. 
Long. 16, diam. 5 mill. 
6, Guanpina arcuaTa, Pfr. Gland. testé fusiformi-turritd, tenui- 
usculd, nitidd, subarcuatim et confertim costulatd, succineo-flavidd, 
strigis angustis, remotis, arcuatis, rufis, pallide marginatis ornata; 
spird subulatd, acuté; suturd crenulatd; anfractibus 9 planis, 
ultimo 4 longitudinis subequante ; columelld strictiusculd, breviter 
truncatd ; aperturd oblongd ; peristomate simplice. 
Long. 138, diam. 34 mill. 
7. Acuatina Apamsit, Pfr. (Bul. costulatus, Adams). Ach. testd 
Susiformi-turritd, longitudinaliter distinete costatd, inter costas 
basi anfractds ultimi evanescentes subtilissimé striatd, corned, 
strigis rufis irregulariter ornatd; spird turritd, apice acuto; an- 
fractibus 8 convewis, ultimo 4 longitudinis subequante ; columella 
subrectd, basi oblique truncatd ; aperturd subrhombed. 
Long. 7, diam. 24 mill. 
8. Acnatina Gossxt, Pfr. Ach. testd subulatd, tenui, diaphand, 
cered, remote costatd, inter costas in anfractibus ultimis deorsum 
obsolescentes subtilissimé siriatd; anfractibus 9—10 convevius- 
culis, ultimo 4 longitudinis vix superante ; columelld obliqud, basin 
aperture attingente, breviter truncatd; aperturd angustd, ob- 
longa ; peristomate simplice, margine dextro deorsum dilatato. 
Long. 12, diam. 22 mill. 
9, ACHATINA ABERRANS, Pfr. Ach. testd subulatd, tenui, nitidd, 
lineis impressis longitudinalibus, regulariter distantibus notatd, 
pallidé succined, strigis rufulis, angustis, obliquis, sparsis ornatd ; 
. spird subulatd, apice acutiusculo; suturd leviter crenulatd ; an- 
Sractibus 7 planiusculis, ultimo 4 longitudinis equante ; columella 
callosd, torto-subtruncatd ; aperturd oblongd ; peristomate simplice. 
Long. 7, diam. 2 mill. 
This species belongs to a peculiar aberrant group of the genus 
Achatina, of which the type seems to be Ach. columnaris. The co- 
lumella is not exactly truncated, but rather contorted, and forms a 
prominent angle, which appears similar to the truncated columella 
of the true Achatinas. ‘To this same group may be referred another 
very distinct and beautiful species, collected by Mr. Lattre in Cen- 
tral America, and making, like all formerly described species, part 
of the rich collection of Mr. Cuming. 
10. Acuarina Larrret, Pfr. Ach. testd glandiformi, levissimd, ni- 
tidd, fulvd, strigis castaneis leviter arcuatis irregulariter ornatd ; 
spird brevi, conoided, acutiusculd ; anfractibus 7 planis, ultimo 3 
longitudinis fere equante ; columelld callosd, contortd, extus sub- 
truncatd ; aperturd angustissimd, basi dilatatd ; peristomate sim- 
plice, obtuso, margine dextro antrorsum leviter arcuato, 
Long. 38, diam. 14 mill. 
