FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 79 



3. albopunctata — group 



In southeastern Brazil occur seven allied forms — albopunctata, 

 bischqffi multilineata, claresignata, clepsydra, polytaenia, raddiana 

 raddiana, and raniceps — separated from the species of Hyla in other 

 groups by their more streamlined body shape, by lacking an outer 

 metatarsal tubercle, and by having the fingers webbed only at the 

 base in all except claresignata, in which the fingers are less than one- 

 third webbed. These frogs are moderate to quite large in size, but 

 their agility makes them difficult to catch. The greatest range is 

 that of albopunctata, which is found from French Guiana to Sao Paulo; 

 raniceps occurs from northern Brazil to Paraguay, raddiana raddiana 

 is loiown from Sao Paulo to Argentina, and polytaenia occurs from 

 Alinas Gerais to Santa Catarina. The remaining species are so rare 

 in collections that they are known at present only from a limited area 

 near their respective type localities. 



For a statistical analysis of measurements of members of the 

 albopunctata group here discussed, see pages 373 and 376. 



Key to frogs of Group 3 in southeastern Brazil 



a^ Fingers nearly }i, toes % webbed; dorsum pale yellowish, with a series of 

 light-edged dark spots on the sides and femur; a dark postanal patch. 



claresignata (p. 86) 

 a2. Fingers webbed only at the base. 



fei. Snout elongate, upper jaw projecting considerably beyond lower; adpressed 

 heel reaching well beyond tip of snout, 

 c'. Toes Yi webbed; nostrils }^ as far from tip of snout as from eye; posterior 

 femur bluish, with scattered, round, yellow spots. 



albopunctata (p. 80) 

 c^. Toes % webbed; nostrils % as far from tip of snout as from eye; posterior 

 femur with 7 to 9 heavy slate-colored bands forking below. 



raniceps (p. 96) 



6*. Snout not conspicuously elongate, upper jaw not projecting much beyond 



lower; toes }i webbed. 



c'. Diameter of eye equal to its distance from tip of snout; dorsum with 



alternately wider and narrower stripes, these sometimes broken up 



into longitudinal series of spots; a wide, dark lateral stripe. 



polytaenia (p. 89) 

 c*. Diameter of eye somewhat less than its distance from tip of snout, 

 d'. Tympanum very small, about Yi of eye diameter; dorsum with a dark 

 hourglass-shaped blotch beginning on the eyeUds and extending to 



the sacrum clepsydra (p. 87) 



d*. Tympanum Y2 diameter of eye. 



e'. PoUex very pronounced; heel reaching to tip of snout; dorsum with 



many fine, dark, parallel lines . . . bischoffi multilineata (p. 84) 



c*. PoUex slight; heel reaching to anterior border of eye; dorsum not 



striped; an irregular dark lateral stripe bordered with a light edge 



above raddiana raddiana (p. 93) 



