232 LAND AND FRESHWATER 
organ has a strong retractor muscle, with its attachment near that 
of the penis.” 
Relative Position of the different Parts in A. gigas.—<‘ On cutting 
through the skin of the upperside of the back, commencing from 
between the eye-tentacles, the penis is seen lying in the middle line 
between the inverted eye-tentacles (plate xxv. fig. 2); on the proper 
left of it are seen three large convolutions of the intestine (7); and 
on laying it over to the right side the salivary glands of flattened 
form are seen spreading over these, and a distinct connexion with 
the central convolution was very clearly made out (fig. 5, a). Pro- 
ceeding from the sides of the buccal mass will be noticed two strong 
muscles, which have their attachment on the frontal margin of the 
body-cavity, at the point (plate xxiv. fig. 3) m; these are the re- 
tractor muscles of the head and buccal mass. 
«The spermatheca les on the right side of the animal, covered 
partly by the oviduct ; and a large expansion of the intestine occu- 
pies the posterior portion of the cavity, narrowing suddenly to enter 
that of the shell above. 
“A very large mucous gland lies next the sole of the foot along the 
whole length of the body-cavity ; and two large pedal nerves are 
conspicuous and traverse it, throwing off nerves to the epidermis, 
and extend on to the caudal gland.” 
The teeth of the radula (Plate LXII. fig. 8) are numerous, 
arranged thus :— 
6D Bo a2 at A 2h sO" 
94.1. 94 
presenting a large number of broad central teeth, the central bluntly 
bicuspid, the firs st 6 central on either side show only a blunt cusp 
on the outer base, but from the 7th to the 25th an inner notch 
becomes apparent. The inner laterals are long, curved, pointed 
teeth, with a cusp low down on the outer margin; this disappears 
about the 50th, and thence to the edge of the radula they are simple 
unicuspid teeth, becoming gradually shorter in length. It is thus 
very distinct from the odontophore of any species of Girasia. The 
jaw (Plate LXII. fig. 8a) is much curved anteriorly, and has a 
well-marked notch on the middle edge. 
AUSTENIA SCUTELLA, Bs. (Plate LII. figs. 1-1 e.) 
Locality. Nasmana, in the Chinab valley, on the direct road from 
the Panjal to Sealkote (from W. Theobald’s collection). 
Vitrina scutella, Bs. A. & M. N. Hist. 1859, vol. ii. p. 188; 
Pfr. Mon. Hel. oil iv. p. 798; Reeve, Kina: f. 13; Hanley, 
Conch. Ind. p. 29, pl. Ixvi. f. 4 (it is not known whether this figure 
represents the Khasi or Kashmir specimen ; from its size it must be 
the latter (vide original descr.). Hanley considers this the variety, 
but on what grounds it is not clear). 
Helicarion (sec. B) scutella, Theob. Supp. Cat. p. 23. 
Helicarion scutella, Nevill, Hand-list, p. 15 (8 specimens, Assam, 
Stol.: these certainly must belong to another species; though 
