ZOOLOGICAL AND BOTANICAL ASSOCIATION. 25 



larger Trochii, it is occasionally found attached ; every shell that I have 

 seen A. maculata invest was tenanted by the Pagurus Prideauxi (Leach), 

 a species which, extensively as the native Paguri have been collected by 

 me, never occurred under other circumstances. On the "Waterford coast, 

 investing dead shells (inhabited by P. Bernhardus) of Buccinum unda- 

 tum (Dr. Farran)." 



"Waterford coast being a truly vague locality, I shall endeavour here 

 to indicate the exact spot where I found this anemone. Ere proceed- 

 ing, I should mention, that on my discovering this species, I wrote to 

 the late William Thompson on the subject, unconscious that he had pre- 

 viously met with it. The great size of my specimen, its having invested 

 a much larger shell than he had seen it on, and that shell being inha- 

 bited by another member of Pagurus, seemed to excite his surprise ; and 

 a somewhat lengthened correspondence ensued, which terminated by my 

 suggesting the probability of its being a southern form ; that it might be 

 approaching its northern limit when found in Belfast Bay, and, conse- 

 quently, diminished in size; and if research was prosecuted more to the 

 southward, it might be found of increased size. I cannot say whether 

 he assented to those views ; but I conceive there is a near approach to 

 truth in them. 



I now proceed with my narrative. 



Anxious to have a view from the sea of the Bonmahon cliffs, pierced 

 in all directions by the labours of miners from time immemorial, I went 

 in a row-boat, to the distance of half a mile from the land, and, " lying - 

 to" directly opposite to the portion of the cliff called the Silver Mines, 

 I had a full view of what I had so much desired. As is my usual habit, 

 I inquired from the boatmen the depth of the water, and the nature of 

 the ground under the boat; and found that there were from 12 to 15 fa- 

 thoms water, and the ground was a bank of old shells — a spot likely to 

 produce many desiderata. "When thus occupied, one of the boatmen had 

 thrown overboard a hook, baited with a limpet, which had been left from 

 the previous night's fishing. It had not been down five minutes when it 

 was laid hold on, and, on being drawn up, I found attached to it an old shell 

 of Buccinum undatum, inhabited by Pargurus Bernhardus, of large size, 

 which had seized on the bait. On examining our " haul," I found that 

 the Buccinum (which was about four inches in length) was invested, for 

 about three-fourths of its surface, with Adamsia maculata; it was a 

 quarter of an inch in thickness, equally spread over the shell from the 



ZOOL. A BOT. SOC PBOC. VOL. II. E 



