On a new Pupoid Type of Uelicide. 155 
C. funebris, Austen, and the two specimens referred by Van 
der Wulp (‘ Biologia Centrali-Americana,’ Diptera, vol. ii. 
p- 1) to C. emasculator, Fitch, but which appear to me un- 
doubtedly to belong to C. analis, Mcq. (? is C. emasculator, 
Fitch, merely a synonym of C. analis, Mcq. ?), besides Fitch’s 
description (‘Third Report on the Noxious, Beneficial, and 
other Insects of the State of New York,’ p. 162, 1859) of the 
larvee of his species, prove beyond doubt that the external 
covering of the larva of Cuttterebra consists, not of spines or 
thorns, but of imbricated scales. 
XX.—A new Pupoid Type of Helicide. 
By Henry A PIvspry. 
In the ‘ Archiv fiir Naturgeschichte’ for the present year, at 
p. 103, the distinguished malacologist of Berlin, Dr. Eduard 
von Martens, has given a résumé of previous knowledge of 
the geographic distribution and systematic position of the 
curious Austrian land-mollusk known as Pupa obtusa, Drap., 
Bulimus obtusus of authors. To this he adds several new 
localities, and, best of all, an account of the soft anatomy of 
the creature, hitherto quite unknown. Figures of the 
genitalia, jaw, and dentition are given, from dissections by 
Mr. A. Protz. 
The species under consideration has a cylindrical shell, of 
equal diameter at the two ends, which are blunt and rounded ; 
and it is of rather chalky texture. In placing it in the genus 
Pupa Draparnaud approximated as nearly to the true position 
of the animal as was possible to a naturalist of his time. In 
1833 Fitzinger, who was, it is well known, a terrible splitter 
of genera, made a new one—Cylindrus—for this species, but 
without characterizing it. Albers, in ‘ Die Heliceen,’ places 
Cylindrus in the genus Bulimus, between the group of Bult- 
minus montanus and that of B. detritus. Vhis would be 
thought an excellent estimate from shell-characters alone. 
Cylindrus is rather less happily grouped in the second edition 
of Albers’s work by Dr. E. von Martens, where it is placed in 
Pupa between the subgenera Leucochila and Faula. 
In the paper now before us Dr. von Martens considers 
Cylindrus of generic rank ; but he expresses no opinion upon 
the family position of the genus or upon its relationships 
with other genera of land-snails. It remains for me, therefore, 
to indicate the systematic position and affinities of this inter- 
esting form. 
