APPENDIX. 



Since the Catalogue was printed, the following additional 

 information has been received: 



MAMMALIA. 



23. Martes sylvestris Niks. Marten (p. 6). 



One shot in the woods, Azerley, near Ripon ; now in the 

 possession of Col. Crompton (Joseph Lucas, MS.). 



One seen by Mr. J. Lucas, in 1870, on High Ash Head 

 Moor, above Masham (MS.). 



30. Phoca vitulina L. Common Seal (p. ). 



Respecting the date of extinction, information received from 

 Mr. H. G. Faber, of Stockton-on-Tees, and Mr. H. T. 

 Mennell, shows that the animal survived much later than 

 is stated at p. 8. 



The latter has furnished a copy of his and Mr. Perkins' 

 list of the mammalia of Northumberland and Durham, 

 published in 1863, wherein is stated that between 1820 and 

 1830 about a thousand seals frequented the mouth of the 

 Tees, of which as many as thirty might often be counted 

 at one time; but that in 1862 the number was reduced to 

 three individuals. The seals exhibited great dread of the 

 steamboats, which had greatly increased in number on the 

 river during the preceding few years ; and to this and the 

 enormous increase of population in the neighbourhood, 

 was attributed their rapid decrease. 



Mr. Faber remembers the seals being numerous at the 

 Tees mouth, and has seen them lying on the sands as 

 many as a dozen together. He recollects disturbing one 

 about twenty years ago on Seaton Snook, which was very 

 tame, swimming about within twenty yards, and could only 



