PULMONATA. 333 
Var. A. Testa majore striis transversis numerosioribus. 
Testa striis transversis distantioribus odsoletis ; longitudinalibus subnullis. 
Testa levigatd ; labro incrassato. 
Testa tribus lineis rufis picta. 
Testdé angustiore clathratd, striis transversis distantioribus et longitudinalibus 
2? 
3) 
29 
FOO 
raris; labro reflexo, rare marginato. 
M. Deshayes has given the figure of an operculum of what he considered might 
belong to this species, but as it was not found in position this is uncertain. The apex of 
this shell is generally broken in the French specimens, but this probably is accidental ; 
my figures 2 6, d are from a specimen in Mr. Edwards’ Cabinet, which have the 
volutions slightly convex ; figures 2 a, ¢ are made from a fragment in my own cabinet, 
with more flattened volutions, and the shell of it appears to have been more cylindrical 
than Cy. mumia. This fragment has upon it a few broad spiral striz, and I thought 
possibly it might be the cast of some species of Cylindrella, a genus not uncommon on 
the western side of the Atlantic, and for this reason I had it represented, but I now 
believe it to be only a variety of C. mumia, although the cast of a shell represents the 
volutions as more convex than would the shell itself; the matrix only filling the cavity 
after the absence of the animal. 
Genus 29th.—Cauuta. Gray, 1840. 
This genus appears to have been proposed in the year 1840 for a group of the 
Family Cyclophoride by Dr. J. E. Gray, when he gave an undescribed species as the 
type, and it forms another division of a large group of shells once united under the name of 
Cyclostoma. Since then Chenu (p. 490) has thus described the genus:—‘“ Coquille pupiforme, 
couverte Pun enduit lisse, brillant. Overture arrondie, un peu dévice, péristome mince oper- 
cule mince, membraneva, a tours étroits. C. lubrica, Sowerby, f. 3631-2.” Callia is closely 
united to Pupina, differing from it in not having an open canal at the base of the aperture, 
which characterises the former genus; and as our shell seems destitute of this canal, I 
have thought it best to give the only species of this group known to me from the British 
Kocenes under this generic name, because it has been previously adopted for it, without 
expressing any opinion of my own as to the propriety of the generic division of the group. 
No. 255. Caiuta (?) Lavis, &. #. Edwards, MS. Tab. XXXIV, fig. 3 a—c. 
Purina? tavis, F. Edwards, MS. 
Catrra? — Sandb. Land- und Siissw.-Conch., p. 298, taf. xvii, fig. 13, 1872. 
