FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 311 



?1912. Leptodactylus longrostris (not of Boulenger) Battmann, p. 93 (specimens 

 from the Organ Mountains, Rio de Janeiro). — Nieden, 1923, p. 488 

 (part) . 



Description. — Adult male, USNM 99120, Sacco Sao Francisco, 

 Niteroi, Rio de Janeiro. Vomerine teeth in two strong, narrowly 

 separated patches behind and between the choanae; tongue one-half 

 as wide as mouth-opening, almost rectangular, with a slight indenta- 

 tion on its free posterior border. Snout moderately long, rounded 

 when seen from above; viewed in profile, snout shows a decided ridge 

 between nostril and edge of mouth extending back as far as the 

 nostrils; upper jaw projecting beyond lower. Nostrils superolateral, 

 not projecting, their distance from end of snout about one-half their 

 distance from eye, separated from each other by an interval equal to 

 that from nostril to eye. Can thus rostralis rounded but well-marked; 

 the loreal region concave, sloping gently to the flaring upper lip. 

 Eye large and prominent, its diameter nearly equal to its distance 

 from end of snout; interorbital diameter IK times the width of upper 

 eyelid, equal to distance between nostrils; tympanum large, distinct, 

 two-thirds the width of eye, separated from eye by an interval equal 

 to one-half its own diameter. Fingers free, with faint lateral ridges, 

 second and fourth subequal, reaching to base of penultimate phalanx 

 of third, first very long, reaching to base of last phalanx of thu'd; 

 a large projecting oval tubercle at base of thumb and a larger rounded 

 palmar tubercle; the subarticular tubercles well developed. Toes 

 with lateral ridges, not webbed, third a little longer than fifth, reach- 

 ing midway along antepenultimate phalanx of fourth; a small, conical 

 inner and a minute rounded outer metatarsal tubercle; a faint glan- 

 dular ridge on inside of tarsus reaching almost to heel. Body moder- 

 ately stout, in postaxillary region a little narrower than greatest head 

 width; when hind leg is adpressed, heel reaches between eye and 

 nostril ; when limbs are laid along the sides, knee and elbow overlap ; 

 when hind legs are placed at right angles to body, heels greatly over- 

 lap. Skin of upper parts faintly glandular; a pronounced dorso- 

 lateral glandular fold with a shorter, less distinct one below it on each 

 side; a short glandular ridge above tympanum; posterior part of back 

 and upper tibia with minute raised pustules; venter smooth except 

 for some weak granules below anus; a distinct ventral disk. A heavy 

 elongate gland begimiing behind angle of mouth, ending above shoul- 

 der; a diagonal slitlike depression on each side of the neck just below 

 angles of mouth show the presence of internal lateral vocal sacs. 



Dimensions. — Head and bod}^ 40 mm.; head length 14.5 mm., width 

 14.5 mm.; femur 18 mm.; tibia 21.5 mm.; foot 21 mm.; hand 9.5 mm. 



Color in alcohol.- — Dorsum sepia, with an indistinct darker triangle 

 between the eyes, and irregular dark patches across the back; a dis- 



