FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 367 



Hypopachus miilleri (Boettger) 



Plates 33, Figures e-o 



1885. Engystoma mulleri Boettger, p. 241 (type locality, Paraguay); 1892, p. 



22.— BouLENGER, 1894, p. 347. 

 1895. Hypopachus mulleri Peracca, p. 23; 1897, p. 16. — Andersson, 1906, p. 4. — 



MiRANDA-RiBEiRO, 1926, pp. 189, 226, fig. 101; 1937a, p. 56.— Mello- 



Leitao, 1937, p. 315. — Carvalho, 1948, pp. 1-3, figs. l,a, 2,a, 3,a, 4,a. — 



SCHUBART, 1939, p. 57. 

 1898. Hypopachus muelleri Boulenger, 1898b, p. 126. — Carvalho, 1939a, p. 280. 

 1904, Dermatonotus mulleri M^hely, p. 208, pi. 13, figs. 1-3. — Nibden, 1926, 



p. 72. 

 1910. Gastrophryne muelleri Stejneger, p. 166. 



1934. Hypopachus incrassatus (not of Cope) Parker, 1934a, pp. 111-2, — MCller 

 and Hellmich, 1936, p. 94, figs. 34, 35.— Dunn, 1949, p. 2. 



Description. — Adult male, USNM 97990, Bello Horizonte, Minas 

 Gerais, Head very short; tongue more than three-fourths the width 

 of mouth-opening, attached behind but free on the sides; upper jaw 

 projecting considerably beyond lower. Snout obtusely rounded; 

 canthus rostralis blunt, merging with the slanting loreal region which 

 ends in a slight concavity above the upper lip. Nostrils superolateral, 

 very large, valvular but not projecting, their distance from end of 

 snout about one-half their distance from eye, the interval between 

 them about three-fourths the length of snout. Eye moderate in size 

 but prominent, its diameter equal to snout length. Interorbital 

 diameter twice that of upper eyelid, l)j times the interval between 

 nostrils. Fingers free, short, second slightly greater than fourth, 

 reaching to base of penultimate phalanx of third; an oval tubercle at 

 base of first finger, and two others similar to it on palm; metacarpal 

 tubercles fairly well developed; very distinct dermal folds on sides of 

 second and third fingers, less distinct on first and fourth. Toes very 

 slightly webbed at base, short, third much longer than fifth, reaching 

 half way on antepenultimate phalanx of fourth; a small pointed inner 

 metatarsal tubercle but no outer one; subarticular tubercles prominent, 

 pointed, single; distinct dermal ridges on sides of toes but none on 

 tarsus. When hind legs are extended forward, heel barely reaches to 

 axilla; when limbs are laid along the body, knee and elbow are widely 

 separated; when hind legs are bent at right angles to body, heels are 

 well separated. Skin very loose, smooth above, with minute pustules 

 forming small flattened glands on sacrum and sides of body; a very 

 prominent skinfold across the head just behind the eyes, bending 

 backwards over the tympanic area and ending behind the mouth. 

 Venter smooth, with loose longitudinal throat folds evidencing an 

 external vocal sac in the male, as well as minute spinules on the throat. 



