30 THE BAYLOR BULLETIN 



79. Thamnophis radix Baird and Girard. Racine Gar- 



ter Snake. 

 A specimen from Dallas, mentioned by both Cope 

 and Ruthven, is the only Texas record that I can find 

 for this species. 



80. Thamnophis makciana Baird and Girard. Marcy's 



Garter Snake. 

 Marcy's garter snake inhabits a broad strip of 

 territory east of the plains and west of the timber 

 belt, from Oklahoma south to the Mexican border. 

 Extends west along the Rio Grande valley to El Paso, 

 but apparently does not occur in the more southern 

 trans-Pecos Counties. The eastern limit of its Texas 

 range, so far as we now know, is indicated by speci- 

 mens from Waco, Victoria and Brownsville. It is 

 rare in the vicinity of Waco where I have collected 

 only four specimens in more than twenty years. 

 In Victoria and Refugio Counties, it is one of the 

 commonest of all snakes. 



81. Thamnophis eques Reiiss. Brown Garter Snake. 



The range of this species is very imperfectly 

 known. It inhabits all of the trans-Pecos counties 

 and crosses the Edwards Plateau to San Antonio. 

 Northward it ranges into the granite country (Llano 

 and Burnet Counties) . My Burnet County specimens 

 are indistinguishable from several collected in West- 

 ern Texas, but I am a little doubtful of my Waco 

 specimens. Two of the latter were identified by Mr. 

 Brimley as cyrtopsis (eques), but the several now 

 on hand are faded out in spirits and can hardly be 

 distinguished from some of the varieties of sirtalis. 



82. Thamnophis sirtalis sirtalis Linn. Common Gar- 



ter Snake. 



Eastern Texas, west to Dallas and Waco, south in 

 the coast region to Victoria and Matagorda Counties. 

 In this State we have two varieties which occur to- 

 gether in the same localities. One of these has both 



