No. XIX. 



Description of a New Genus and New Species of Extinct 

 Mammiferous Quadruped. By John D. Gochnan, M.D. 



THE subject of the following description was disinterred 

 a short time since by Mr Archibald Crawford, about 

 f welve miles from Newburg, in Orange county, New York ; 

 a region deservedly celebrated for its inestimable contribu- 

 tion to natural history in the splendid skeleton of the 

 gigantic Mastodon, which was thence obtained in 1801 by 

 the indefatigable founder of the Philadelphia Museum. 



The bones obtained by Mr Crawford are in a good state 

 of preservation, and comprise the following parts of the 

 skeleton : — 



The anterior part of the head ; consisting of parts of the 

 frontal, intermaxillary, superior maxillary and two-thirds of 

 the lower jaw bones ; the tusks and sixteen teeth. Of the 

 posterior part of the head there is but a small fragment, 

 being a piece of the occipital bone, distinguished by the 

 presence of nearly one condyle, and showing a small part 

 of the circle of the foramen magnum. 



Of the bones of the trunk and extremities, there are 

 four vertebrae, and one separate spinous process; two ribs, 

 of which one is whole and the other broken and imperfect ; 

 a humerus, radius, ulna, and two digital phalanges ; a femur, 

 tibia, and five epiphyses or heads of bones, separated from 

 their shafts, which, with other circumstances, show that the 

 animal had not attained its adult age. 



