70 [April. 



Churchillia (nov. gen.) B. and G. Three pairs of frontal plates, one more 

 than in Coluber and TropidoJiotus ; a very small loral, and several small post- 

 orbitals. Scales carinated. 



Churchillia bellona, B. and G. Body yellowish, with a series of large sub- 

 hexagonal patches of brown bordered with black, and two or three rows of 

 smaller patches on the sides ; a brownish black band across the eyes from top of 

 head to the angle of the mouth. Collected by Gen. Churchill on his march 

 along the Rio Grande in 1846. 



Coluber mormon, B. and G. Posterior frontal plates very large ; vertical 

 plate long and narrow on its middle ; eyes very large. Found in the valley 

 of the Great Salt Lake by Capt. Stansbury. 



Heterodon nasicum, B. and G. Numerous minute frontal plates instead of 

 two large pairs ; two brown stripes over the head ; temporal patches very broad. 

 Collected in Texas by Gen. Churchill. 



The Committee to which was referred a paper by Dr. Leidy, entitled 

 "On the Osteology of the Head of the Hippopotamus and a description 

 of the osteological characters of a new genus of Hippopotamidae/' reported 

 in favor of publication in the Journal. 



ELECTION. 



The following gentlemen were elected Members of the Academy, viz. : 

 J. C. Trautwine, Esq. ; J. Forsyth Meigs, M. D. ; Jacob G-. Morris, 



Esq.; Rev. Henry W. Ducachet; Frederick A. Genth, M. D. ; Elias 



Durand, Esq,; J. M. Allen, M. D.; James Aitken Meigs, M, D. ; 



William Camac, M. D.; Mr. Henry J. Boiler; Mr. Greorge Zeager; all 



of Philadelphia. 



