52 CATALOGUE OF THE MOLLUSCA 



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 CuUercoats and Whitburn fish- 

 ing boats. — A . H 



The animal is of a pale yellowish colour. 



5. 0. NiTiDA, Alder. 



Odostomia nitida, Aid. in Ann. Nat. Hist. xiii. 326, t. 8, f 5. 

 A single specimen was obtained in shell- sand from Tyne- 

 mouth. It is perfectly distinct from any of the preceding. 



6. 0. INSCULPTA, Mont. 



I'urho insculptus, Mont. Test. Brit. Supp. 129. 

 In shell-sand, Tynemouth and CuUercoats, rare. — J. A. 



7. 0. SPIRALIS, 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. xiii. 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. 0. INTERSTINCTA, Mout. 



Turbo interstinctus, Mont. Test. Brit., 324, t. 12, f. 10. 



In shell-sand, Tynemouth and CuUercoats, rather rare. On 

 corallines from the fishing boats, Whitburn. — Mr. 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. 



