FROGS OF COLOMBIA — COCHRAN AND GOIN 485 



a heavy skinfold across chest; a pronounced ventral disk; an external 

 median vocal sac. 



Dimensions. — Head and body, 36 mm.; head length, 12 mm.; 

 head width, 14.5 mm.; femur, 14.5 mm.; tibia, 15 mm.; foot, 13.5 

 mm.; hand, 10 mm. 



Color in alcohol. — Dorsum cinnamon anteriorly to drab posteriorly, 

 with three long, irregular, transverse seal-brown markings, the first 

 between the shoulders; a seal-brown chevron between the eyes, its 

 ends extending across the eyelids; limbs pale wood brown, the upper 

 leg surface with two wide brown crossbars; chin and chest buff, the 

 remainder of lower surfaces immaculate ecru drab. Sides of head olive 

 buff, with an indistinct, squarish darker spot from eye to upper lip 

 border, and two dark triangular marks on the snout separated by a 

 narrow buff median line. Anterior and posterior surfaces of femur 

 immaculate buff; the round - inguinal gland black. Soles of feet and 

 palms of hands immaculate buff. 



Remarks. — According to Parker (1927b), this species is found in 

 northeastern Colombia, Venezuela, Brazilian Guiana, and Aruba 

 Island. Andersson (1906) seemed doubtful that Cope's name brachyops 

 which applied to a specimen from Magdalena River, New Granada, 

 could be used for the more easterly frogs of Venezuela, Brazilian 

 Guiana, and Aruba. Unfortunately, no Choc6 specimens have come 

 to hand, so this problem remains unsettled. 



Notes on the types of Lystris brachyops Cope by the junior author: 



Types.— ANSP 2260-4, Rio Magdalena, Atlantico, Colombia, 

 collected in 1869 by Buckow. The five specimens — ANSP 2260, 2262 

 (females), 2261 (juvenile), 2263-4 (males) — are in very good condition. 

 Each is tannish above with light brown mottlings; and on each there 

 is a pair of dark chocolate brown bands just anterior to base of leg 

 and lateral to ilium. The spots are ovoid and about 4 by 5 millimeters. 



Description of ANSP 2260, an adult female. — Tongue nearly round, 

 not notched behind, about one-half as wide as mouth opening. In- 

 ternal nares small, rounded, and situated well forward in roof of 

 mouth. Vomerine teeth in two tiny oval patches between internal 

 nares, the patches separated on the midline by about the diameter of 

 a single patch, each patch about one-half the diameter of an internal 

 naris. Head about as broad as long, somewhat pointed, tapering to a 

 rounded snout; snout blunt as seen from side, very slightly projecting; 

 eyes relatively small for a frog of this size, not protuberant; greatest 

 diameter of eye slightly less than distance from eye to snout; nostril 

 near tip of snout; interorbital space about one-half diameter of eye; 

 tympanum distinct, one-half the diameter of eye, separated from 

 eye by one-half its own diameter; upper eyelids, top of head, and 



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