TESTACEA. 41 



PlATE VIII. 



Fig. S. Upper surface. 



9. Upper surface. 



10. Under surface. 



11. Upper surface. 



12. Under surface. 



13. Upper surface. 



14. Under surface. 



15. Shell. 



16. Spawn of figs. 16, 17, produced in February. 



17. Portion of the same, enlarged. 



Turbo senior.— Plate VIII., Figs. 18, 19. 



I do not know that this animal has been previously represented. 

 The specimen figured here was taken at Queensferry in 1811, while I 

 was on a journey along the coast. Very diminutive at the time, it 

 received little attention, especially from being left in the country, where 

 it remained eleven months, without renewal of the sea water, its element. 

 Nevertheless, it did not seem to have suffered much, becoming quite 

 vivacious on replenishment of the vessel. 



The shell was under three lines in length ; it had seven volutes, the 

 last larger orifice nearly circular. Animal a limax ; tentacula two, long 

 and slender, with a black eye at the external base of each. Upper part 

 of the body black, under part greenish. 



In the year 1819, the subject, as now described, was carried to Mr 

 Patrick Syme, an artist distinguished by the accuracy and the delicacy 

 of his pencil, for delineation. After experiencing much difiiculty in 

 finding it in a suitable position, he returned it in two or three weeks, 

 saying it had crawled above the surface of the water some days pre- 

 viously, and was now dead. 



I therefore resolved to puncture the shell, often an effectual remedy 

 for revival, which should not be neglected by the observer, at least as 

 experimental, when desirous of preserving his specimen. 



F 



