BY J. C. COX, M.D., F.L S. 



123 



that part of our coast — Ostrea edulis, Linn., or a variety of it, 

 and Ostrea cucullata, of Born. 



The Rev. J. E. Tenison- Woods, in his *' Census of the Marine 

 Shells of Tasmania," records four species of Oysters as found 

 on the Tasmanian shores, namely, Ostrea edulis, Linn., Ostrea 

 mordax, Gould, Ostrea rutiipina, Jeff., a variety of 0. edulis, and 

 Ostrea Angasi, Sowerby. 



In Hutton's ''Manual of New Zealand Mollusca," (Marine 

 and Land Shells), published in 1880, I find recorded as found on 

 the New Zealand coast four species, Ostrea edulis, Linn., Ostrea 

 discordia, Gould, Ostrea glomerata, Gould, Ostrea reniformisy 

 Sowerby. 



In Reeve's '' Monograph on the genus Ostrea," published in 

 1871, in Conch. Icon., I find that there are five species 

 recorded as being found on the Australian Coasts, namel}^, Ostrea 

 myrtiloides, Lam., Ostrea virescens, Angas, Ostrea Angasi, Sowerby, 

 Ostrea discordia, Gould, and Ostrea suhtrigona, Sowerby. 



So that thirteen species have been recorded by these various 

 authors as being found on our Australian Coasts proper, Tasmania, 

 New Zealand, Lord Howe's and Norfolk Islands, two of 

 which are considered only varieties of Ostrea edulis. They are 

 as follows : 



1. Ostrea Angasi, Sowerby. 

 circumsuta, Gould. 

 ciicallata. Born. 

 discordia, Gould. 

 edulis, Linn. 

 glomerata, Gould. 

 mordax, Gould. 



9. Ostrea 'purimrea, Hanley, a 

 variety of 0. edulis, Linn. 



10. Ostrea reniformis, Sowerby. 



11. ,, rutupina, Jeff., a var. 

 of 0. edulis, Linn. 



12. Ostrea suhtrigona, Gould. 



13. ,, virescens, Angas. 

 myrtiloides, Sowerby. 



This does not include all the species which so far have 

 been found on our shores, we shall have to add : 

 14. Ostrea Oristagalli, Linn. 15. Ostrea imhricata, Lam. 



2. 

 3. 

 4. 

 5. 

 6. 

 7. 

 8. 



