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SCIENTIFIC SUEVEY. ng 



MAMMALS. 



I have also been informed by Pi-of. Hamlin that he has found a 

 very rare species of Sorex in his neighborhood, (Waterville) the 

 Sorex Thompsoni. Only one specimen of this Sorex has been found 

 in Maine besides this, and that was in Norway, discovered by A. 

 E. Verrill. 



Sub-order Insectivor^. Family Soricid^. Sub-family SoRiciNiE. 



Genus Sorex, Linn. 



Gen. Guar. Ears large, valvular concha directed backward, partly furred on 

 both surfaces, tail about as long as the body (exclusive of the head,) or longer, its 

 hairs of equal length, except at the tip; feet moderate, not fringed ; skull slender 

 anteiiorly and elongated, upper anterior incisor with a second basal hook, and a 

 small angular process on the inner side, near the point; two anterior lateral teeth 

 somewhat larger than the next. 



Sorex Thompsoni, Baird. 

 Thompson's Shrew. 



This species was named by Prof Baird as a mark of respect to 

 the late Prof. Zafloc Thompson of Vermont, who first discovered 

 it in that State. 



Prof. B. gives the specific characters thus : 



Very small and slender. Ears large, about as long as the fur, 

 which measures 1| lines. Feet very small and slender, hinder ones 

 barely exceeding four lines. Tail shorter than the body, exclusive 

 of head ; terminated by a pencil. 



Only four lateral teeth above, the third in contact with the first 

 molar. Anterior upper incisors with a serrated internal lobe near 

 the point. 



Color above, dark olive brown, slightly hoary, paler on sides. 

 Beneath ashy white, no tinge of chesnitt or reddish brown. 



Length 2 inches. Tail, \\. 



We give the above description with the hope that it will lead 

 others to watch for more specimens of the kind. 



Respectfully submitted, 



EZEKIEL HOLMES. 



