42 THE BAYLOR BULLETIN 



Mexican boundary. Cope's ts^pe of Tantilla hallowelli 

 came from Eagle Pass. Specimens from Burnet 

 County, while possessing only six upper labials, have 

 the top of the head almost as dark as in T. nigriceps. 



131. Elaps fulvius Linn. Harlequin, Bead or Coral Snake. 



Eastern Texas from the northern boundary south 

 to the Rio Grande, west almost to the foot of the 

 plains. 



VIPERID^. 



132. Agkistrodon piscivorous Lacepede. Cottonmouth: 



Stumptail Water Moccasin. 



Eastern and Southern Texas, abundant in the tim- 

 ber belt and the coast and Fayette prairies. In the 

 Rio Grande country extends west to the mouth of 

 the Pecos River. In the east central section occurs 

 at Dallas, Waco and Burnet. The tjrpes of Toxicophis 

 pugnax Baird and Girard were from Indianola. 



133. Agkistrodon contortix Linn. Copperhead: High- 



land Moccasin. 



The copperhead is found throughout the eastern 

 and east central sections of the State, south to San 

 Antonio, Refugio and Victoria. The most western 

 locality from which I have a specimen is Burnet, but 

 Mr. Garni has collected it near Boerne, Kendall Coun- 

 ty, and Dr. Brown records it from Pecos. 



134. SiSTRURus MiLlARius Linn. Pygmy Rattlesnake: 



Ground Rattlesnake. 



This tiny rattlesnake is rather scarce in Texas, but 

 IS found in most of the eastern and east-central coun- 

 ties. In the coast prairie district it is found as far 

 south as Victoria and Matagorda counties. In Mc- 

 Lennan County I have collected only one specimen in 

 the past twenty years. 



