Gastrophryne carolinensis 455 



Throat of the male slaty or blackish. Upper parts black or brown or gray. 

 In one specimen the whitish color of the under-parts extends on to the lower 

 tip and sides of the head as a grayish white on a dark background; the other 

 four have the head uniform black or brown. 



STRUCTURAL CHARACTERS (WRITTEN IN 191 2) 



Skin variable, smooth or finely tuberculate; head pointed, its tip obtuse; 

 upper jaw projecting beyond the lower jaw; nostrils much nearer the tip of 

 snout than the eye; a fold of skin extends from the insertion of one arm to 

 eye, thence to other arm insertion; tympanum concealed; toes free, subar- 

 ticular tubercle prominent; inner metatarsal tubercle present; in these five 

 specimens a depressed line across the breast from either arm insertion looks 

 hke an incipient fold. Tongue quite broad, ovate or elhptical, only the caudal 

 border free and this portion much thinner than the rest of the tongue; tongue 

 may be rounded or very shghtly emarginate. In none of the five specimens 

 is it so narrow as Cope figures and in only one so relatively long. 



MEASUREMENTS 



(1912-1914) 



The five adults of 1912 measured 24.5-27 mm., average 25.8 mm.; the 

 head is 4.5-6 mm. long, average 5.0 mm., slightly less than the width of the 

 head at the rictus oris; the width of the head, 6-7.5 mm., average 6.6 mm.; 

 the head is contained in the length of the body, 4.1-5.2 times; snout, 3-4 

 mm., average 3.4, not twice the diameter of the eye, being usually i. 5-1. 2 5 

 times the eye (in agreement with Boulenger ('81, p. 162) and Cope ('89, p. 385) 

 but not with Dickerson ('07 p. 48) ; interorbital distance equal to the eye or 

 slightly more being from 2.25-3.5 mm. in width; eyehd 1.5 mm. or 1.6-2.3 

 in the interorbital distance; femur 9-10 mm., average 9.5 mm., equal to or 

 slightly less than the tibia which is 9.5-10.5 mm., average 9.9 mm.; tarsus 

 6-7.5 mm., average, 6.7 mm., about equal to the width of the head and 

 slightly more than its length; rest of foot 11. 5-12. 5 mm., average 12 mm., 

 equal to fore-limb which is 11. 5- 12. 5 mm., average 12 mm,; forelimb slightly 

 longer than the distance from its insertion to the tip of the snout; posterior- 

 limb from groin, 27-32.25 mm., average 30.3 mm.; in none of the specimens 

 does the hind limb to heel reach beyond front of insertion of the fore-limb. 

 Miss Dickerson ('07 p. 48) gives ''head to shoulder one-third total length" 

 as distinctive of Gastrophryne texensis while for Gastrophryne carolinensis the 

 measurement is "head to shoulder one-fourth total length." In our specimens 

 this measurement is .4-. 3 3 of the total length. 



(Recent Material) 

 Head to angle of mouth 1.4 (20 mm. c?')-i.44 (20 mm. 9 )-i-33 (28 mm. 

 cf )-i.43 (28 mm. 9 )-i.64 (36 mm. 9 ) in width of head; head to angle of 

 mouth 4.0-4.4-4.5-5.0-5.1 in length of body; head to rear of tympanum in 

 length of body; snout .83-.66-.50-.64-.60 in first finger;snout i.o-i.o-i.o-i.i- 

 1.1-.90 in fourth finger; snout 1.0-1.0-.70-.88-.70 in first toe; eye i. 5-1. 5-1.8- 

 1. 06-1. 6 in snout; eye 1.25-1.0-.90-.70-1.0 in first finger; internasal width 



