B U L I M U S . 
Plate XXVI, 
Species 165. (Mus. White.) 
Bulimus Adamsoni. Bui. testa mhfmifomii-ovatd, ventri- 
cosd, spird acundnatd, pyramidali, anfractihus sex ad 
septem, lavibus vel obliqui tenuisiriatis ; columelld snb- 
rectd, aperturd pautulum effusd, labro vix rejiexo ; 
violaceo-cinered, basin versus subolivaced, fusco hie 
illic sparsim nebulatd, vittd conspieud carulesceute- 
albd, olivaceo-nipricaute subremote articulatd cingulatd; 
vittd altera pallida obscurd supra, columelld purpureo- 
nigricanle, peritremate violaceo, intus ccerulescente-albo. 
Adamson’s Bulimus. Shell somewhat fusiformly ovate, 
ventrioose, spire acuminated, pyramidal, whorls six 
to seven in number, smooth or obliquely finely stri- 
ated; columella nearly straight, apertm-e a little 
effused, hp scarcely rellected ; violet ash colour, olive- 
tinted towards the base, sparingly clouded here and 
there with brown ; encircled by a conspicuous blue- 
white fiUet, rather remotely articulated with olive- 
black, there being another pale obscure fillet above, 
columella piu-ple-black, peritremc violet, bluish white 
within. 
Ilab. Base of the Purremo, near the volcano of Tolyma, 
on the eastern slope of the Andes. 
This magnificent species was. purchased many years 
since, with the above locality, by John Adamson, Esq., of 
Newcastle-on-Tyne, and no other specimen has since been 
heard of. The collection of that gentleman having been 
recently dispersed, it has fallen into the possession of 
another eminent amateur conchologist, Henry Hopley 
White, Esq., through whose kindness and liberality I am 
enabled to publish it after a long period of obscurity. 
It is of an elegant pyramidally fusiform growth, rather 
ventricose and a little effused towards the base, of a rich 
olivaceous violet colour, distinguished by a conspicuous 
white belt remotely articulated with purple-black, and the 
peritreme of the aperture is of a rich violet. 
Species 166. (Mus. Dennison.) 
Bulimus Dennisoni. Bui. testd acuminato-ovatd, ven- 
tricosd, anfractibus quinque ad sex, superne subcorwavo- 
depressd, superjicie striis rugosis imdique subtilissime 
decussatd, aufractu ultinto perauvplo, injlato, columelld 
subreetd, aperturd oblongd, taJiro vix rejlexo ; supra 
cesruleo-albicante, nigricante-viridi variegatd et punc- 
tatd, infra luteo-olivaced, punctis strigisque brevibus 
undatis nigricante-viridUms, luteo in uno latere illumi- 
mtis, pulcherritne pktd, zowis albidis cingulatd, quarum 
irferiori subobscurd, pesitremate fusco, intus caruleo- 
albicaute. 
Dennison’s Bulimus. Shell acuminatcly ovate, ventri- 
cose, whorls five to six in niunber, slightly concavely 
depressed round the upper part, the entire surface 
being very finely decussated with rough striae, re- 
ticulated, last whorl very large, inflated; columella 
nearly straight, aperture oblong, lip scarcely reflected ; 
bluish white above, variegated and dotted with 
blackish green, beneath yellowish olive, very beau- 
tifully painted with dots and short-waved streaks of 
blackish green, illuminated along one side with 
yellow, and encircled by two whitish zones of which 
the lower is somewhat obscure, peritreme brown, in- 
terior bluish white. 
Hab. ? 
Another fine speeies, from probably the same fertile 
region, of which, I believe, only two specimens are known ; 
one, here figured, in the collection of J. Dennison, Esq. ; 
the other, very much worn and discoloured, in the British 
Museum. It aiiproximates closely to the preceding species 
in general appearance, but differs materially in its details. 
In the B. Adamsoni the whorls form a nearly straight 
pyramidal cone, in the B. Dennisoni they are more ventri- 
cose and less pyramidally disposed, whilst the last is 
proportionably larger, more oblong, and more inflated. 
The texture of the two shells is dissimilar ; the former is 
smooth or obbquely striated and appears to have a thin 
horny stratum of semi-transparent epidermis, the latter is 
finely decussated with rough uneven strim in a manner 
which is rarely if ever observed beneath a horny epidermis. 
The difference of colouring is best described in the accom- 
panying drawings ; they are two elegantly painted shells 
and, as species quite unapproached by any hitherto de- 
scribed, constitute a most interesting and valuable addition 
to the genus. 
July, 1848. 
