MOLLUSCA. 
17 
BELLEROPHON GANESA. 
Plate 2, fig. 7. 
B. uncialis, discoidalis, umbilico magno, anfractibus 4 apcrtis, con- 
vexis, fere gibbis, prope umbilicum declivem obtuse angulatis. Carina 
dorsalis proniinens, plana. Superficies striato-costata, striis asperis 
transversis, ad dorsum subrectis, lineisque concentricis obscuris 
decussatis. 
An inch diameter, of 4 very convex whorls, the outer 
scarcely enveloping the others, which are all displayed in the 
open umbilicus, giving a discoid or helicoid look to the shell. 
The whorls themselves, however, are not compressed, but 
wide, with a boat-shaped section, steep towards the umbilicus, 
the sides of which are flat, and are separated from the body 
of the whorl by a blunt angle. The surface of the whorl is 
highly convex, and rather inflated, with a sigmoid curve and 
a slight depression. A furrow occurs on either side of the 
keel, which is rather broad and prominent, flat or even slight¬ 
ly concave, and quite smooth. 
The lines of growth bend much backward, fig. 7 a , and are 
as sharp strife over the umbilical face, but they become equi¬ 
distant as sharp ribs (crossed by very fine lines) over the con¬ 
vex sides, and are quite absent on the keel. Near the mouth, 
which is rather suddenly expanded, but less so than in our 
fig. 7 b, they are closer and more regular. Named after the 
'Hindu god Ganesa (the elephant-headed god). 
Locality .—Rather plentiful on the Chorhoti Pass, 16,000 
feet. (1754.) 
BELLEROPHON.— 
Plate 2, fig. 8. 
A more globose and much smaller shell than the last, ap¬ 
parently smooth and with a bluntly- angular keel, and the 
mouth somewhat thickened. It is too imperfect to name. 
VOL. ii. D 
