1786 Mollusks. 



Note on the Arrival of the Summer Birds of Passage in Roxburghshire, in thi 



years 1846 and 1847. 



1846. 1847. 



Pied wagtail About the middle of March. March 25th 



Gray wagtail Do. March 21st 



Starling April 13th March 25th 



Titlark April 6th April 11th 



Reed bunting April 9th March 22nd 



Sandpiper April 11th April 22nd 



Willow wren April 19th April 29th 



Sand martin April 20th May 5 th 



Tree pipit April 26th May 6th 



Swallow April 29th May 5th 



Cuckow April 30th May 7th 



Blackcap May 1st May 9th 



House martin May 6th May 5th 



Whitethroat Do. May 10th 



Wood-wren Do. May 11th 



Swift May 9th May 8th 



Redstart May 10th May 12th 



Corncrake May 11th May 7th 



Whinchat May 12th 



Flycatcher May 20 th 



Garden-warbler May 21st 



— Archibald Jerdon ; Lintalee, Jedburgh, Mag 27th, 1847. 



Description of a remarkable Species or Variety of British Paludina. — Having met 

 with a variety, or species, of British Paludina not described in Gray's edition of ' Tur- 

 ton's Manual,' and, as far as I can learn, unknown to conchologists generally, the fol- 

 lowing description thereof may prove interesting. The shell is perfectly beardless, 

 both externally and internally, in all stages of growth ; it has five and a half volutions 

 in the adult state ; the colour is a bluish- green when alive with the animal in it, 

 changing to yellowish-green after the animal has been removed, and the moisture of 

 the perioslraca thoroughly dried up ; inside light bluish-white, and the lip edged with 

 dark brown, forming a very pretty contrast with the light colour of the shell : in general 

 outline of form it approaches nearest to Paludina achatina, but is thinner, and rather 

 shorter in proportion to the breadth than the generality of specimens of that species. 

 I have not as yet been able to discover any decided difference in the animal of that 

 and the banded Pal. achatiua, except that the foot appears darker coloured, and does 

 not protrude so far from beneath the shell when the animal is progressing. This shell 

 is very local, and by no means plentiful, at which I am rather surprised, as in the ovi- 

 duct of one individual I found fifty young ones in different stages of development, and 

 in that of the banded shell, which is abundant, not more than seventy. I have taken 



