REPTILIA 



26. Alligator mississippiensis (Daudin) Alligator 



Crocodilus mississippiensis Daudin, Hist. Nat. Rept. 

 Vol. 2, 1803, p. 412. 



The first reference to the alligator as a Bexar County 

 reptile is that of Cope (Bull U. S. Nat. Mus., No. 17, p. 13). He 

 states that "it is occasionally seen in the San Antonio River, 

 within the limits of the City of San Antonio". This was writ- 

 ten many 3'ears ago but 1 am reliably informed that a few spe- 

 cimens of the great saurian are still to be found in the county. 

 1 have a young example from the Marnock collection. The la- 

 bel on the jar was merely Bexar County. 



27. Coleonyx brevis Stejneger, Banded Gecko 



Coleonyx brevis Stejneger, N. Am. Fauna, No. 7, 1893, 

 p. 163. 



The type of this species was collected at Helotes by Mar- 

 nock. Cope first recorded it under the name of Eublepharis 

 variegatus but thirteen years later, Dr. Stejneger, in going over 

 the series of Eublepharis (Coleonyx) in the National Museum, 

 discovered that the material represented two distinct species and 

 distinguished the Texan form by the name of brevis. 



This little gecko is abundant in the vicinity of Helotes 

 and has been collected within two or three miles of San Antonio. 

 It is found in rocky places and the specimens represent two 

 types — one banded, the other spotted. The majority of Mar- 

 nock's specimens were of the banded form. 



28. Crotaphytus collaris collaris (Say) Ring-necked Lizard : 



Collared Lizard. 

 Agama collaris Say,Long's Exped. Rocky Mts., Vol. 2, 

 1823, p. 252. 



' ' Plateau country near San Antonio, in the rocks and open 

 woods" (Cope, Bull. U. S. Nat. Mus., 1880, No. 17, p. 11.) This 

 large and handsome lizard, known in different localities by such 

 vernacular names as mountain boomer, bull lizard, glade devil, 

 gray nelly and gray bitch, is a rather common species along all 

 of the rocky roads leading out from San Antonio. Marnock 

 obtained numerous specimens in the Helotes neighborhood. 



