28 ON THE ZOOLOGICAL POSITION OF TEXAS. 



TliG tubercles of the superior surfaces are small aud rather closely 

 placed; they are largest on sides of the back. There is a faint areola- 

 tiou of the gular region. The limbs are short and stout. The humerus 

 is half or more inclosed in the skin. The palm reaches nearly to the end 

 of the muzzle. The fingers are short and stout, and have neither dilata- 

 tions nor borders. The first is shorter than the second, which equals 

 the fourth. The palmar tubercles are not distinct. The heel of the ap- 

 pressed hind foot in thin specimens marks the middle of the tympanic 

 disc or posterior border of orbit, and the end of the muzzle the extremity 

 of the tarsus. The hind foot beyond the tarsus is only as long as the 

 tibia. The toes have no dilatations, but possess dermal margins, and a 

 short but distinct basal web. There is but one solar tubercle, a small 

 cuneiform i^rominence. Total length, m. .035 ; of head, to line of posterior 

 borders of membranum tymjmni, .011 ; width of head at the latter, .014 ; 

 length of hind leg, .045; of femur, .013; of hind foot, .022; of tarsus, 

 .009. 



The color above is olive-gray, and below, uniform straw-color. A 

 black band passes from the end of the muzzle on each side, through the 

 eye, and expanding over the ear-drum, terminates in front of the hu- 

 merus. One or two dark spots above and behind the axilla may unite 

 to form i)art of a lateral band. There may or may not be blackish spots 

 above the groin and on the coccygeal region and anterior part of the 

 back. The limbs have a few dark-brown cross -bands ; the femur is yel- 

 lowish and unspotted behind. 



There is some difference between the Texan specimens and those from 

 Georgia. Specimens from the latter State are very smooth, and the 

 limbs, especially the feet, are slender. The heel reaches to the orbit, or 

 at least to the front of the tymi)anic membrane, and the end of the tar- 

 sus extends to or well beyond the end of the muzzle. The web and dig- 

 ital dermal borders are much less marked. Two specimens were obtained 

 by Mr. Boll near Dallas, and three at Helotes by Mr. Marnock. All 

 the latter have large brown dorsal si^ots. 



ChoropMlus triseriatus clarM Bd. From Dallas, Fort Concho, and 

 Helotes. 



Acris gryllus crepitans Bd. Common at Dallas, Washington, Helotes, 

 and on the first plateau. Professor Bakd adds Indianola, giving this 

 small species a range over all parts of Texas. 



Hyla carolinensis semifasciata Hallowell. From Dallas, and very com- 

 mon near Helotes. From Indianola, according to Professor Baird. 



