On a new species of Mustela. 222 



hair with dusky and canescent. The limbs, tail, and ears 

 are almost wholly dusky black; and the middle of the belly 

 and of the neck in the same line, together with the insides 

 of the limbs close to the belly, are pure snowy white. The 

 following name of specific character may serve to draw 

 curiosity : — 



Mustela ? Calotus of a clear slaty blue freckled vaguely 

 with hoary; the amply tufted ears, the spreading tail, and 

 the limbs, blackish ; the belly and neck below, pure white ; 

 twelve to fourteen inches long, and four to five high ; tail 

 with the hair, ten to eleven — without it, eight inches. Ha- 

 bitat, Himalaya and Tibet. 



B. H. Hodgson. 

 Cathmandoo, April, 1841. 



Note on Irish Fresh Water Shells. By W. H. Benson, Esq. 



Moradabad, Zlst May, 1841. 



A list of Wexford land and fresh water shells is given 

 in p. 395 of the Annals and Magazine of Natural History, 

 for January 1841, by Mr. Hanley, who seems to have been 

 unaware of the admirable catalogue of Irish land and fresh 

 water species, given in the three preceding numbers by the 

 Vice-President of the Belfast Natural History Society. I am 

 enabled to add to Mr. Hanley's list two other fresh water 

 species found by myself in the county of Wexford in 1834. 

 The Lymnaea is especially interesting, as Mr. W. Thompson, 

 (page 120,) seemed to have but vague information of its 

 occurrence in Ireland ; his best fact being, that a tray labelled 

 " Cork" had been received by an English Conchologist, con- 

 taining undoubted specimens of it, which the Irish collector 

 had not himself identified as belonging to the species, 

 though he vouched for the correctness of the assigned 

 locality. I have now before me two specimens differing 

 only in greater whiteness of the inner lip, and in a blackish 

 coat over the polished epidermis, from English examples 



