TRIGONOCEPHALUSPISCIVORUS. 67 



As to the toxicophis leucostoma of my friend Professor Troost, of Nashville, I 

 was at first disposed to regard it as a variety of the Trigonocephalus piscivorus, 

 from the general correspondence in the number of plates and scales, as well as 

 from the habits of his animal; but a drawing he sent me of his animal is enough 

 to satisfy me that they are distinct. 



