40 



[Senate 



MAMMALIA. 



212, 213. Skull of the Skunk, (Mepkites americana.) 



214. Skull of the Fisher, (Mustela canadensis,) 



215, 216. Skull of the American Sable, {Mustela martes.) 



217. Skull of the North American Otter, (Lutra canadensis.) 



ORNITHOLOGICAL. 



218. Upper mandible of the Albatross. From South America. 



ICHTHYOLOGICAL. 



ORDER PLECTOGNATHI. 



FAMILY GYMNODONTIDiE. 



219. DioDON PiLosus, Hairy Balloonfish. New- York bay. 



FAMILY OSTRACIONID^. 



220. Lactophrys de rhamii ? I'aken on the shore of Long Island. 



Not described in De Kay's Zoology. 



Characteristics. No orbital spines ; back elevated in the form of a 

 crescent, longitudinally, with two spines, centrally situated on the pe- 

 riphery of the crescent, and distant one-third of an inch from each 

 other; three spines on each side of the abdomen ; length four inches* 



Should this prove to be an undescribed species, it is proposed to name 

 it De Rhamii^ in honor of the late Henry C. De Rham, Jr. 



