146 CATALOGUE OF THE MOLLUSGA 
Turbo pallidus, Mont. Test. Brit. 325, t. 21, f. 4. 
In shell-sand at Tynemouth, rather rare—J. A. At the roots 
of corallines brought in by the Cullercoats and Whitburn fish- 
ing boats—A. H 
The animal is of a pale yellowish colour. 
5. O. nivipa, Alder. 
Odostomia nitida, Ald. in Ann. Nat. Hist. xiii. 326, t. 8, £. 5. 
A single specimen was obtained in shell-sand from Tyne- 
mouth. It is perfectly distinct from any of the preceding. 
6. O. InscuLpra, Wont. 
Turbo insculptus, Mont. Test. Brit. Supp. 129. 
In shell-sand, Tynemouth and Cullercoats, rare.—J. A. 
7. O. sprratis, Mont. 
Turbo spiralis, Mont. Test. Brit., 323, t. 12, f. 9. 
In shell-sand, frequent. Occasionally found alive in pools 
among the rocks, and on corallines from the fishing boats. 
This is the commonest species of Odostomia on our coast. The 
animal is white, and has the tentacles ear-shaped, or longitu- 
dinally folded, with the eyes at the internal base,—characters 
common to this as well as the preceding genus. The figure 
given in the Annals of Nat. Hist. xii. t. 8, f 13, is deficient in 
not displaying these characters. From the minuteness and tran- 
sparency of the animal, the folds of the tentacles can only be 
seen in favourable lights. 
8. O. IntERSTINCTA, JZont. 
Turbo interstinctus, Mont. Test. Brit., 324, t. 12, f. 10. 
In shell-sand, Tynemouth and Cullercoats, rather rare. On 
corallines from the fishing boats, Whitburn.—M/r. R. Howse. 
In a fresh state the shell has the furrows between the ribs 
more deeply impressed at their termination towards the base of 
the body whorl, giving the appearance of a line of punctures, 
with sometimes a fainter one below it. ‘This is not usually seen 
in sand specimens, and was consequently overlooked by Mon- 
tagu. A variety is not unfrequently found in sand, which is 
more produced than the normal form, and may possibly turn out 
to be a distinct species, but the worn state of shells found in 
sand is unfavourable to the appreciation of minute characters. 
