LIST OF IRISH TESTACEA. 



11. interrup- 



tus. 



12. vinetus. 



13. quadrifas- 



ciatus. 



14. elegans. 



15. fontinalis. 



l6. Nautileus. 



17. cristatus. 



18. Clathms. 



19. pentangu- 

 lads. 



or sub-umbilicus on the pillar lip, and being 

 without the small tooth. Length a line and 

 a half; breadth not a line, 



" Found in Dublin Bay, at the South Bull, and 

 is in the cabinet of Dr Turton. 



" A variety we found more conic and paler, 

 with yellowish marks on the body whorl, 

 which is larger in proportion to the rest, and 

 all are more rounded and deeper defined." — 

 Dr Turton. 



Montagu, Test. Br. Supp. p. 126. t. 20. f. 8.— - 

 Linn. Tr. viii. p. 1 66. In sand from Port-» 

 marnock ; not uncommon. 



Montagu, Test. Br. p. 307- ; Supp. t. 20. f. 7- 

 Rings-End, Dublin Bay, by Dr Turton. 



Montagu, Test. Br. p. 328.; Supp. t. 20. f. 7- 

 In sand from Portmarnock ; rare. 



Donovan, Br, Sh. t. 5^. T. striatus. — Mon- 

 tagu, Test. Brit. p. 342. : Supp. t, 22. f. 7- 

 Portrush, in the cabinet of Dr Macdonnell, 

 Belfast. 



Montagu, Test. Br. p. 348. ; Supp. t. 22. f. 4. 

 Common in almost all ditches, and ^in the 

 Grand and Royal Canals. 



Montagu, Test. Br. p. 464. H. nautileus ; Supp; 

 t. 25. f. 5.— Linn. Tr. viii. p. I69. t. 5. f. 4. 

 Two specimens in a ditch at Naas. 



Montagu, Test. Br. p. 460. vignette I. f. 7, 8. 

 H. cristata. Plentiful near Naas ; and in 

 several ditches at Clonooney, King's County. 

 Donovan, Br. Sh. t. 28 — Montagu, Test. Br. 

 p. 296.— Linn. Tr. viii. p. 17L t. 5. f. 1. 

 Dublin Bay, and Portmarnock, rather plen- 

 tiful, and of both varieties of the shell. 



Plate xxiv. fig. 7. Shell with eight whorls, 

 abruptly tapering to a point, and terminating 



