154 
Mr. E. A. Smith on Land- and 
infra medium anfr. ultimi subevanescentibus, instructa ; anfr. 8, 
convexi, sublente accrescentes, sutura vix obliqua, subprofunda 
sejuncti ; spira elongata, ad apicem obtusa ; apertura ovalis, 
superne et infra acuminata, longit. totius T 5 T adaequans ; perist. 
tenue, margine columellari expanso et reflexo, extremitatibus 
callo tenuissimo junctis. 
Longit. 22 millim., diam. maj. 10|, miu. 10 ; apertura 9| longa, 
5 lata. 
Hob. On the plains within 50 miles of Mamboia. 
One of the four specimens of this species is somewhat 
stumpier than the others and has the aperture closed with a 
firm white epiphragm. 
Bulimus (Cerastus) Lasti . 
Testa ovata, superne producta, late perforata, subpellucido-albida, 
epidermide tenuissima pallide flava induta, nitida, oblique con- 
fertim et regulariter striata ; anfract. 7, convexi, sutura profundi- 
uscula, fere horizontali, sejuncti, ultimus inferne leviter saccatus, 
striis ad basim productis ; apertura ovata, superne acuminata, 
antice rotundata, longit. totius | subaequans ; perist. tenue, 
margine columellari late expanso et reflexo ; spira obtuse conica, 
ad apicem haud acuta. 
Longit. 18 millim., diam. maj. 11, min. 10; apertura 8 longa, 5 
lata. 
Hab. Same as B . mamboiensis. 
This is a much shorter species than B. mamboiensis , with 
the aperture rounder below, the sculpture on the body- 
whorl continued equally strong to the base, the umbilicus 
slightly larger, and the columellar reflexion broader. 
Bulimus ( Cerastus ) Emini . (PI. V. fig. 8.) 
Testa Bulimo Lasti persimilis, differt apice magis acuminato, aper- 
tura magis perpendiculari, anfractibus striis vel lineis spiralibus 
ornatis. 
Longit. 19 millim., diam. maj. 11, min. 10| ; apertura 8 longa, 
5 lata. 
Hab. Hkata, Kidete, Htoni Hiranza ( Emin ). 
Although very like B. Lasti in form, I think there is little 
doubt that this species is distinct. On comparison the spire 
is- seen to be more pointed, the aperture less lateral, and the 
whorls exhibit numerous fine, transverse, white lines, which 
seem to be in the texture of the shell and are more plentiful 
in some specimens than in others. They are scarcely visible 
to the naked eye. 
