224 On the Anatomy of Apera Burnupi, HZ. A. Smith. 
short thin tube above (v.d.), which probably represents the 
vas deferens. In Schizoglossa, according to Hedley (5, p. 390), 
the penis is ‘‘ represented by a slight bulbous swelling near 
the orifice, a vas deferens arising therefrom, and a short 
muscle attaches this swelling to the nearest point of the body- 
wall.” In Apera there is a large and peculiarly shaped 
receptaculum seminis ; its lower portion, forming the recepta- 
cular duct, opens into the vagina as a wide sac, above this it 
becomes narrowed, the receptaculum seminis here commencing 
and forming a large hook-shaped body (Pl. V. fig. 6, 7.s.). 
The free oviduct is about the same length as the penis and 
vas deferens together, only slightly wider ; it forms the direct 
continuation of the vagina (Pl. V. fig. 6, fov.). The common 
duct is of considerable length, much convoluted and folded 
upon itself. The albumen-gland is pyriform in shape and of 
median size. The hermaphrodite duct is a long tube slightly 
coiled in its upper portion. ‘I'he hermaphrodite gland 
consists of a series of glandular clusters, the outer portions of 
which are villous (Pl. V. fig. 6, A.g/.). 
References. 
. Agassiz, L. Nomenclator Zoologicus (Mammals), 1842. 
. Bryney, W.G. ‘On the Jaw and Lingual Dentition of certain 
Terrestrial Mollusks.” Bull. Mus. Comp. Zool. Camb., U.S.A., 
1879, p. 331. 
3. Cottince, WALTER E. “The Morphology of the Generative 
System in the Genus Testacella.” Ann. & Mag. N. H. 1893, 
vol. xii. pp. 21-26, pl. i. 
4, Gopwin-AustEen, H. H. “On the Molluscan Genus Paryphanta, 
and on the Anatomy of P. Hochstetteri, Pfr.” Proc. Malac. 
Soc. 1893, vol. i. pp. 5-9, pl. i. 
6. Heptny, Cuarues. “ Schizoglossa: a new Genus of Carnivorous 
Snails.” Proc. Linn. Soc. N.S. W. 1892, vol. vil. pp. 887-392, 
A ox. 
eae: D. F. “Ueber Chlamydephorus, Binney.” Jahrb. 
d. d. malak. Gesell. 1885, Jh. xii. pp. 17-20, T. 2. 
LacazE-Duruiers, H. pe. ‘“ Histoire de la Testacelle.” Arch, 
Zool. exp. et gén. 1887, t. v. pp. 458-596, pls. xxix.—xl. 
Smiru, Epaar A. “ Description of a New Species of Slug from 
South Africa.” Ann. & Mag. N. H. 1892, vol. x. pp. 465-466. 
. Waener, A. J. ‘Die Arten des Genus Daudebardia, Hartmann, 
in Europa und Westasien.” Denksch. Akad. Wiss. Wien, 1896, 
Bd. lxii. pp. 609-626, 5 pls. 
nr 
SS: 200s oe 
EXPLANATION OF PLATE V. 
Fig. 1. View of posterior portion of the dorsum of Apera Burnupi, 
E. A. 8., showing dorsal opening. 
Fig. 2. The alimentary canal, &c. 
Fig. 3. The pedal gland, viewed from above. 
Fig. 4. Transverse section of the same. 
