OOLITIC SHELLS. 
89 
JURASSIC GASTEROPODA AND BIVALVES. 
By J. W. Salter, F. G. S., &c. 
The description of these few species lias fallen to my lot, 
only because my friend and fellow-labourer, Professor Blanford,* 
lias left England for bis important duties at Calcutta. He 
sent me the last MSS. of the Ammonites, &c., &c., by steamer, 
to Southampton, and left me to finish the rest. All the 
Oolitic fossils are from the same range of strata; but, as he 
lias shown in his late Paper in the Asiatic Society's Journal, 
these strata are very thick, and probably include several mem¬ 
bers of the Jurassic series. In fact, if we did not know this 
from the published sections, the fossils would indicate it. 
They certainly include some forms of the Lower and Middle 
Lias, and of the Inferior and Great Oolite; and his identi¬ 
fications include the Oxford Clay. 
The two Gasteropods are hardly worth a separate notice. 
One seems new. I call them Turbo and Chemnitzia. Pro¬ 
fessor Blanford finds Gasteropoda equally scarce (Pleurotoma- 
ria , Turritella) in the Spiti Pass. 
TURBO IN VITUS.—-V. S P . 
Plate 21, fig. 3. 
This minute and solitary specimen probably belongs to the 
genus Turbo, but its characters are very obscure. It is not 
four-tenths of an inch high; the diameter about equal to the 
height; the whorls four, rather convex, and showing three 
spiral ridges—the upper near the rather deep suture, the 
VOL. II. 
* Of tlic Bengal Club, Calcutta. 
N 
