16 THE BAYLOR BULLETIN 



it ranges to Eagle Pass and northward to the vicinity 

 of San Antonio. Recorded from Eagle Pass (Dit- 

 mars) , Sheffield, Pecos County (Bailey) , Helotes and 

 San Antonio (Cope). I have a specimen from the 

 foothills of the Chisos Mountains, Brewster County. 



IGUNANID^* 



30. Anolis caeolinensis Cuvier. Green Lizard Chame- 



leon. 

 Eastern Texas from Texarkana to Brownsville in 

 the pine-woods and Gulf Coast counties ; in the inte- 

 rior west to Dallas, Falls and Bastrop Counties. The 

 range of this species extends to within half a dozen 

 miles of Waco, but I have never seen it west of the 

 Brazos River in this section of the State. 



31. Crotaphytus collaeis Say. Ring-necked Lizard. 



Mountain Boomer. 



Middle-Western and Northwestern Texas from the 

 Panhandle south to the Pecos River; eastward in 

 rocky districts to Tarrant, Bosque, Coryell and 

 Travis Counties. 



32. Crotaphtus collaris baileyi Stejneger. Bailey's 



Ring-necked Lizard. 



This variety of collaris replaces the typical form 

 in the region south and west of the Pecos River. 



33. Crotaphytus reticulatus Baird. Reticulated Lizard. 



This rare lizard is known from only a very few 

 localities in the Rio Grande Valley in the extreme 



♦Ctenosaura sp. Iguana. 



A species of Iguana enters the southern portion of the Rio Grande 

 Valley of Texas, but up to the present time no specimens from that 

 region have been added to any of the scientific collections. Prof. 

 Menger, Principal of the Corpus Christi public schools, informs 

 me that a half-grown Iguana was captured in Neuces County, not 

 far from his town. Mr. Julius Hurler writes that he found a dead 

 Ctenosaura in' May, 1908, at a point between Brownsville and Rancho 

 St. Thomas, eight miles southeast on the Rio Grande River. This 

 specimen was too badly decomposed for specific determination. 



