ZOOLOGICAL AND BOTANICAL ASSOCIATION. 79 



FRIDAY EVENING, JUNE 16, 1860. 



Professor W. H. Harvey, M. D., M. R. I. A., F. L. 8 M F. R. S., Preei- 



dent, in the Chair. 



The Minutes of last Meeting were approved of, and signed by the Pre- 

 sident. 



Me. W. Bookey Brownrigg read the following paper : — 



OCCURRENCE OF TEREDO NORVEGICA AT TANXARDSTOWN, COUNTY WATERFORD. 



Being on a geological excursion last March along the coast of Waterford, 

 in company with Mr. Theodore Cooke, we were induced to spend a day 

 at Bonmahon, for the purpose of examining the copper mines of the 

 district. 



Being forced to take shelter from the rain, on one occasion, in the 

 store-yard of the Mining Company of Ireland at Tankardstown, which is 

 situated on the sea-shore, and close to Bonmahon, we chanced to notice 

 several planks of timber, lying about, perforated in every direction by 

 the ravages of the Teredo. 



Upon inquiry, we learned that they had until a few days previously 

 formed part of a wooden pier used for shipping the ores for Swansea, 

 and which had been completely destroyed in about six years by these 

 Molluscan pirates, although the greater part of it was covered by the tide 

 only at high- water. 



Through the kindly assistance of Mr. F. Bennet, one of the captains 

 over the copper mines of the district, I succeeded in obtaining two of the 

 planks for more particular examination; and they are now in the hands 

 of my friend Dr. Carte, Director of the Royal Dublin Society's Museum. 

 I found the Teredo to be the Norvegica of Linnaeus, Forbes, Hanly, &c. 

 The latter observes, in describing its habitats, — 



" It must be regarded as one of our rarer shells, tjie greater number 

 of collections being only provided with individuals taken from ships' 

 timbers, and other foreign sources, — few, indeed, with specimens derived 

 from piles of jetties, submerged trees, and other legitimately indigenous 

 habitats." 



So far as I have been able to learn, the Teredo Norvegica has been 

 only once found on the coast of Ireland. 



The instance to which I allude is that at Clonca, where Dr. Charles 



