MOLLUSCA OF INDIA, 227 
very like A. gigas, from Teria Ghat, hut the hinder part of the foot 
is more like that of Girasia hooker’. 
In size the shell is that of Helicarion resplendeus, described by 
Nevill, J. A. 8. B., from specimens collected by Dr. J. Anderson at 
Sawady, on his journey to Yunnan; but I have never examined the 
original specimens ; it is possible they are one and the same species. 
GrrasiA PEGUENSIS, Theob, (Plate LIX. figs. 6, 6 a, 6b, animal ; 
6c, 6 d, shell.) 
Girasia peguensis, Theob, Journ. A. 8. B. 1864, p. 244. 
Vitrina pequensis, Hanley, Conch. Ind. p. 29, pl. Ixv. figs. 2, 3. 
Helicarion (sec. B) peguensis, Theob. Supp. Cat. p. 23. 
Girasia? pequensis, Godw.-Aust. P. Z. 8. 1880, p. 294. 
Helicarion (Austenia) peguensis, Nevill, Hand-lst, p. 16. 
Original description :—‘* Animale pallide lutescente anteriort parte 
virescente ; posteriori tamen luteo-flavescente. Tentaculis superioribus 
longis et cum cervice virescentibus; inferioribus parvulis; pallio 
granulato, cutis anserine modo ; fusco, testum omnino fere obtegente. 
Caudal papilla nulla, Longitudina 80 mills. 
“ Testa elongata, halicoidea, polita, subdiaphana ; margine tenw, 
virescente ; reliqua parte flavescente, et juwta apicem solidissimum 
albescente. Long. 15, lat. 9, alt. 4 mills. 
“ Habitat in humidis locis prope Pegu. This species belongs to the 
same section as V. gigas, B., which it resembles in miniature, and 
is remarkable for its solid columella and apex.” 
Description from spirit-spectmen (length 50 mm.) :-—The posterior 
part of the shell rests in a depression of the hinder part of the foot, 
though it is not so distinctly of V-shape, or so deep as in Girasia 
hookeri. The colour isa ruddy brown, the mantle somewhat greyer 
and a good deal mottled ; the sides of the foot are speckled with dark 
grey. Individuals of all these species, as may be noted, differ very 
much in coloration, and in this species quite unspotted specimens no 
doubt occur. There is a very distinct, pale, ridge-like line or bar 
extending from near the respiratory orifice backwards, and fo!low- 
ing the edge of the right shell-lobe; another similar bar runs 
along the left margin of the left shell-lobe. The mantle and its 
lobes are exactly as in Austenia gigas, and it thus forms a very 
perfect link between the two subgenera Girasia and Austenia*. 
The shell has the apex more developed than in Jbycus and is like 
that of Austenia. 
The long retractor muscle of the left eye-tentacle and the buccal 
mass are joined together and have their attachment posterior to the 
shell and body-cavity ; and this is different from A. gigas, where the 
same muscles have their attachment on the frontal margin of the 
body-eavity. The right eye-tentacle is separate, its attachment is 
on the posterior margin of the body-cavity, and the penis retractor 
muscle attachment is also here but posterior to it. The generative 
* T place it in the first at the end of the series. 
