TRANSPLANTATION OF BIVALVES. 79 



of a redshank sandpiper {Totanus calidris) which had 

 been taken alive with the shell attached, was exhibited 

 at a meeting in Berlin by Mr. Schaff, in 1888/ and a few 

 years ago, Mr. Ford, of Redhill, showed Mr. Gurney a 

 common sandpiper [Totanus hypoleiicos) said to have 

 been caught, some time previously, on a stream in that 

 neighbourhood, with a mussel {Anodonia or Uniof) 

 firmly clinging to one of its feet : I hear from Mr. 

 Ford that the bird, when found, was on the bank of the 

 stream, about three feet from the water, and that the 

 shell-fish had caught hold of the frog of its foot. 

 Bivalves must almost certainly cling to birds in this 

 manner somewhat frequently, but only a few observed 

 instances (compared with the number noted under the 

 two previous heads) can be given ; we are fortunate, 

 however, in having clear evidence of occasional over- 

 land transportal : a tame duck has been known to drag 

 a heavy Anodonta across two large fields, and, what is 

 much more important, four birds, a heron, a blue-winged 

 teal, a duck, and a snipe having shells clinging to their 

 toes, have been actually shot on the wing. 



The case of the duck and Anodonta came under the 

 observation of Mr. Standen when a boy. A flock of 

 ducks belonging to his grandfather at Goosnargh used 

 to make excursions to some ponds at a distance from 

 the house, and he remembers going out one evening 

 with several other boys in search of one which had not 

 returned with the rest, and which was found, about half 



^ " Sitzungs-Bericht der Gesellschaft naturforschender Freunde 

 zu Berlin," 1888, pp. 121-2. 



