58 U.S. NATIONAL MUSEUM BULLETIN 288 



at right angles to body, heels touch. Skin of upper parts easily abraded, 

 pustular anteriorly, with large conical tubercles on sacrum and upper 

 surfaces of legs; venter smooth (minutely pustular under the lens); 

 a swelling behind posterior corner of eye above tympanum; a weak 

 skinfold across the chest; no ventral disk; apparently no external 

 vocal sacs in the male. 



Dimensions.- — Head and body, 26 mm.; head length, 9 mm.; head 

 width, 8 mm.; femur, 11 mm.; tibia, 12 mm.; foot, 10.5 mm.; hand, 

 7.5 mm. 



Color in alcohol. — Dorsum clove brown; a black lateral stripe 

 beginning at tip of snout, continuing on loreal region, widening 

 behind eye, and dropping obliquely to groin, outlined above by a 

 seal brown dorsolateral stripe which lightens at midbody to white 

 (yellow in life) ; anterior femur with a clove brown stripe, and above 

 it a semilunar pale spot from the groin halfway to knee; remainder of 

 anterior femur sepia, with an irregular row of black spots preceding 

 a white stripe on posterior femur, edged below by sepia spots; venter 

 pale buff, immaculate except for a black line around lower jaw and 

 a patch of dark dots below shoulder; upper lip cream buff below the 

 black lateral stripe, powdered with small sepia dots; lower surfaces 

 of hands and feet slate-gray, the disks and tubercles a little darker. 

 A narrow, irregular white line goes forward along the side from the 

 groin. 



Remarks. — With Cope's wholly inadequate description, the faded 

 and softened condition of the type specimen from Truando at the 

 time of description, and the present lack of freshly collected material 

 from the type locality, it is very difficult to identify any frog positively 

 as Phyllobates latinasus. Even the example chosen for the preceding 

 redescription does not agree entirely with the earlier conceptions of 

 Barbour, Boulenger, and Dunn as to what latinasus really might be. 

 Although Cope states that his example had an oblique white line 

 from the femur along the side, below the dorsolateral stripe, Barbour 

 and Noble (1920, p. 399) believed latinasus to be conspecific with 

 Boulenger's pratti, in which the light dorsolateral stripe continues 

 straight back to the groin, with a short parallel white stripe along 

 the side from groin forwards nearly to axilla, as shown in the figure 

 of pratti (Boulenger, 1899, p. 274, pi. 11, fig. 3). Four examples that 

 do have the non-oblique dorsolateral line and the short, straight 

 parallel lateral line have come to light; these are from Choc6, Valle, 

 and Narino, Colombia. 



The foot of latinasus averages proportionately shorter than that of 

 any other Colombian species of Phyllobates, although a graph of 

 critical measurements indicates a slight overlapping with that of 

 mertensi. 



