148 



TJ. S. NATIONAL MUSEUM BULLETIN 206 



Hyla similis Cochran 



Figure 17; Plate 13, Figures a-d 

 1952. Hyla sitnilis C'ochran, p. 50 (type locality, Manguinhos, Districto Federal). 



Description. — The original description is reproduced here, as follows: 



Description of the Type: An adult male, U. S. N. M. no. 97317, from Man- 

 guinhos near the city of Rio de Janeiro collected on February 25, 1935, by Joaquim 

 Venancio. Vomerine teeth in two heavy, short, transverse groups almost con- 

 tinuous medially, between the posterior halves of the choanae; tongue about 

 three-fifths as wide as mouth opening, roundly elliptical except for a deep notch 

 on its free posterior margin; snout rather short, rounded when viewed from above 

 and in profile, the upper jaw extending considerably beyond the lower; nostrils 

 superolateral, greatly projecting, almost at the extreme tip of snout, separated from 

 each other by an interval equal to two-thirds their distance from eye. Canthus 

 rostralis rounded; loreal region slightly concave and very oblique. Eye large. 



Figure 17. — Hyla similis, USNM 97317 (type): a, Dorsum X l;b, profile X l;c, foot X 2; 



d, hand X 2. 



very prominent, its diameter equal to its distance from nostril and to five-sixths 

 the length of snout; interorbital diameter about 1^ times the width of upper 

 eyelid, greater than distance between nostrils. Tympanum very distinct, about 

 two-thirds the width of eye, separated from eye by a very narrow interval equal 

 to about one-eighth its own diameter. Fingers with a slight trace of a basal web, 

 fourth very slightly longer than second but not reaching the base of third, which 

 covers one-fourth the tympanic area; no rudiment of a pollex visible; toes one- 

 half webbed, fifth slightly longer than third, disk of fourth toe covering about 

 one-fourth the tympanic area; a distinct oval inner and a small, wartlike outer 

 metatarsal tubercle; a faint glandular ridge along inside of tarsus and a still 

 weaker outer tarsal ridge; no dermal appendage on heel. Body moderately heavy 

 in build, in postaxillary region narrower than greatest width of head. When hind 

 leg is adpressed, heel reaches to anterior border of eye; when limbs are laid along 

 the body, knee and elbow are separated by a considerable interval; when hind 

 legs are bent at right angles to the body, heels considerably overlap. Skin of 

 upper parts with numerous elongate glandules and small tubercles, especially 

 prominent on the center of the back; a narrow glandular ridge encircling upper 

 part of tympanum and ending just behind it above the shoulder; skin of throat 



