340 U.S. NATIONAL MUSEUM BULLETIN 2 88 



Dimensions. — Head and body, 62.6 mm.; head length, 21 mm.; 

 head width, 21.8 mm.; femur, 27 mm. tibia, 32.4 mm.; heel-to-toe, 

 44.1 mm.; hand, 20.4 mm. 



Color in alcohol. — Blue-black above, cadaverous gray below. Margin 

 of lower lip white; a white line extending from posterior corner of lip 

 to above arm. Distinct whitish rounded spots along the sides between 

 axilla and groin, on anterior and posterior surfaces of thigh, on the 

 concealed surfaces of thigh, and on the concealed surfaces of shanks 

 and feet. Whitish blotches on the lower surface of base of each arm, 

 with less-distinct ones on the upper arm, and a rounded distinct light 

 spot in the middle of chest. A light line above the vent and similar 

 horizontal light lines on each heel. The ulnar and tarsal ridges lined 

 with white. 



Remarks. — When we first received the single Colombian specimen 

 we thought it might be P.jeltoni so we sent it off at once for our friend 

 Benjamin Shreve to examine. He reported that while it was close to 

 feltoni, in his opinion it was closer to boliviana, an identification with 

 which we concur. The two topotypes of boliviana in the British Museum 

 differ from our specimen in that they have a distinct pair of white spots 

 below the vent while the specimen from La Providencia has only one 

 pale spot on one side below the vent. Whether this difference has any 

 significance we cannot say at this time. 



Specimens Examined 

 COLOMBIA 



Caqueta: La Providencia, MLS 62. 

 BOLIVIA: Chulumani, 2,000 m., BM 1901.8.2.49-50 [1947.2.22.32-3] (cotypes) ; 

 Buena vista (Department of Santa Cruz), USNM 118699-700. 



Phyllomedusa tarsius (Cope) 



Plate 41 



1868. Pithecopus tarsius Cope, p. 113 (type locality, Peru, Upper Amazon below 



mouth of Rio Napo). 

 1882. Phyllomedusa tarsius. — Boulenger, 1882a, p. 428. — Ruthven, 1922, p. 57. — 



Nieden, 1923, p. 343.— B. Lutz, 1950, p. 603.— Funkhouser, 1957, p. 



51.— Gorham, 1963, p. 24. 



Diagnosis. — A large Phyllomedusa with the first toe longer than the 

 second, white caps on disks of first and second fingers, a white line 

 above the vent and on base of each heel, and a pair of white spots be- 

 low the vent. 



This species differs from P. bicolor in having the first toe longer than 

 second and in lacking brilliant markings on the legs. From P. edentula, 

 to which it is perhaps most closely related, it differs in having white 

 caps on the disks of first and second fingers, the sides and thighs 

 marked with pale fleckings, a white line above the vent and on each 

 heel, and paired white spots below the vent. 



