o3l PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 
out posteriorly. In some specimens there was no spermatheca, bu 
only a small papilla in its place; these were, perhaps, immatur 
individuals. The free oviduct is slightly swollen in the middle. In 
one specimen I found three embryos of different stages of growth 
embedded in a transparent gelatinous mass, indicating that the specie 
18 Viviparous. | 
The dentition and genital organs most nearly resemble those of 
Sitala anthropophagorum, described and figured by Hedley,! who 
mentions the presence of a dart sac, but in his figure only an 
appendix of the penis, inserted further back than in JL. insculpta, 
and a spermatheca are present. 
The close relationship between S. anthropophagorum and Medyla 
ensculpta goes far to support the view expressed by Dr. von Mollen- 
dorff* that Haliella, Sitala, Coneuplecta, and Huplecta may perhaps” 
be considered as only sections of one genus. . 
M. insculpta has been removed from Helix to Nanina, Zonites, 

til. 
pares 
10 2 ye 25 Ae 

i ey 
h 
C 7 38 
Fic. I. Medyla insculpta (Pfr.). Posterior portion of the foot, enlarged. 
ae {2 af ie ¥ Jaw, much magnified. 
Til. ; rr a Teeth of the radula, greatly magnified. [ 
is aes i" . Je Lower portion of the genitalia, much magnified. 
Trochomorpha, and, finally, by Mousson to his genus Trochonanina. 
Dr. von Méllendorff has given good reasons for abandoning Mousson’s 
genus, since it includes a number of now well-defined genera. The 
proper place for the species is, Im my opinion, using Dr. von 
Mollendorff’s latest classification, under the genus Medyla, Albers, 
section Huplecta, Semper. nail 
When Pfeiffer described the shell its habitat was unknown, bub 
later on it transpired that it came from Norfolk Island, and m 


* Proc. Linn. Soc. New South Wales, ser. 1, vol. ix, p. 386, pl. xXv, fig. 215 
pl. xxvi, fig. 24, 
* Bericht Senckenberg. Naturf. Gesell., 1893, p- 65. 
