Mr. W. H. Benson on new Asiatic species of the genus Pupa. 127 
dantly one year, I could not obtain a specimen at the same season 
in the following year. 
4, Pupa brevicostis, nobis. 
T. rimato-perforata, cylindraceo-ovata, cornea, apice obtuso ; anfrac- 
tibus 45, longitudine celeriter crescentibus; ultimo antice non 
ascendente, 4 longitudinis teste zquante, superioribus convexis, 
superne remote semicostulatis, ultimo et penultimo subplanulatis, 
dimidioque inferiori ceeterorum sericeis, muticis; apertura rotun- 
dato-ovata, 5—6-plicata; plica 1 angulari, brevi; secunda parietali 
profundiore, obliqua; columellari unica; palatalibus 2-3 pro- 
fundis ; peristomate expanso, subreflexo. 
Long. 15 mill., lat. vix 1 mill. 
Hab. ad Barrackpore, Bengal. 
Taken by Dr. J. F. Bacon on the trunk of a tamarind-tree at 
the Cantonment of Barrackpore, near Calcutta, during the rainy 
season of 1848. Out of several individuals forwarded to me, 
overland, by letter in a quill, two reached me alive, and creeping 
about when supplied with moisture enabled me to verify their 
affinities. The lower pair of tentacula is deficient or inconspi- 
cuous, as in Vertigo ; the upper pair carry the eyes at their sum- 
mits. The shell is often carried at an angle of 45°. 
In 1834 Captain Hutton referred a small shell to the genus 
under the name of Pupa cenopicta, which belongs strictly to Bu- 
limus, as conjectured by Pfeiffer, ‘ Monogr.’ vol. 11. p. 82. It is 
figured, no. 492, in that genus by Reeve. It is necessary to re- 
mark that im the numerous specimens which I have examined, 
the callous parietal tooth at the junction of the outer lip has 
never been wanting. Yet this character was omitted by Captain 
Hutton, and it is not noted either in Reeve’s figure or descrip- 
tion. I first took the shell in Bundelkhund in 1826 ; specimens 
received in 1835 from Captain Hutton showed how the tubercle 
had been overlooked by him, the shells being still covered by the 
dirt, from the presence of which he had named them. Subse- 
quently I found the species abundant under stones and rocks at 
Delhi, and Dr. Bacon met with it in great profusion at Kurnal 
on mud-walls and under tiles. It has never occurred to me or 
to my correspondents on the left bank of the Jumna nor of the 
Ganges. Dr. Bacon found a specimen or two at Dinapore on the 
right bank of the latter river, so that it has an extensive range 
to the south and west of those streams. 
The only locality hitherto given for the sinistral toothed Pupa 
Pottebergensis, Krauss, from Southern Africa, is the Pottenberg 
Mountain in Zwellendam, where Krauss found it, though rarely, 
on plants. Sir Edward Belcher pointed the shell out to me as 
occurring near the Round Battery in Simon’s Bay, among Me- 
