76 Notice of Vesperlilio Pruinosus. 



SOLEMYA BOREALIS. Totten. 

 Northern or Boreal Solemya. 



Shell oblong, fragile : hinge without teeth. Valves radiated 

 transversely. Epidermis, dark brown, extending beyond the 

 edge, where it is paler and torn. Color within, greyish blue. 



Resembles Solemya Velum. Say. See Journ. Acad Nat. 

 Sc. Phil. vol. ii. p. 317. ; and description on page 53 of this 

 paper. 



See Totten, in Silliman's Journ. vol. xxvi. p. 368. fig. 1. 



Found on Lynn beach, by Dr. Prescott, (a fine specimen.) 



NOTICE OP THE OCCURRENCE OF SPECIMENS OP VESPERT1LIO 

 PRIHNOSUS. Say. HOARY BAT. Br H. WHEVTLAND. 



Description. EARS large and short ; aperture of the nostrils 

 widely separated. Canine teeth large and prominent ; on the 

 upper jaw, one distinct cutting tooth on each side, conical in 

 shape and placed very near the canine ; under jaw, six incisors. 

 The under side of the anterior margin of the brachial membrane 

 covered with fur of a yellowish white color ; the upper side of 

 the interfemoral membrane is likewise covered with fur, but of 

 a ferruginous grey color ; the fur of the back, long, black brown 

 at base, then pale brownish yellow, then blackish and then 

 white, thus giving to its general appearance a variegated hue, in 

 which the white however predominates : colors beneath similar 

 to those on the back. 



Long's Expedition to the Rocky Mountains, vol. i., p. 167. 



Godman's American Natural History, vol. i., p. 68, pi. iv., 

 fig. 3. 



Harlan's Fauna Americana, page 21. 



Harlan in American Journal of Geology, page 219. 



