FROGS OF COLOMBIA — COCHRAN AND GOIN 39 



to tympanum, another stripe on side of body from armpit almost to 

 groin, and two paler brown stripes on the posterior femur. Center of 

 throat also with pale brown markings. 



A large series of specimens (USNM 145248-300) was secured by 

 Dr. Medem on Gorgona Island in 1961. Following is a description of 

 the color pattern of an individual (USNM 145268) in this fresher 

 material: Dorsum drab-gray with a row of irregular sinuous sepia 

 lines on either side of the midline, and a darker, thicker, sepia dorso- 

 lateral stripe above a narrow, sharp, white stripe going straight back 

 from posterior corner of upper eyelid to upper insertion of femur; 

 snout paler drab-gray faintly marbled with sepia; can thus rostralis 

 and tip of snout with a light ecru drab line; side of head and body 

 with a wide clove brown stripe extending to groin, its lower edge 

 irregular; a white line from near snout tip along upper lip to shoulder, 

 around armpit, and part way along upper arm; venter white with 

 coarse clove brown reticulations continuing on throat and forming a 

 pair of short parallel stripes on the chin; upper limb surfaces drab- 

 gray, the femur with several diagonal clove brown stripes separated 

 by narrow white lines; tibia and foot with three irregular ocellated 

 sepia crossbands; arm with small sepia spots; lower surfaces of limbs 

 white with scattered clove brown spots; posterior femur clove brown 

 with numerous very small light dots; anterior femur white proximally 

 with irregular clove brown longitudinal markings; soles of feet and 

 palms of hands drab gray, the disks and tubercles lighter. 



Except for usual variations in darker or lighter back and more or 

 fewer dark reticulations on lower surfaces, the other specimens of 

 this series have a color pattern very similar to that of the described 

 individual (USNM 145268). Some have the lateral halves of the 

 throat dark, with an irregular white median line and white lip borders. 

 The wide dark lateral band bordered above by the narrow straight 

 white line is the same in all the specimens. 



Remarks. — In the Gorgona Island series, the toes usually show a 

 minute trace of a web, which rarely extends as much as one-eighth 

 the distance along the fourth toe. The fingers are long and slender, 

 the first fingers being a little longer, as a rule, than the second. The 

 heel reaches either to the anterior border or the center of the eye in 

 95 percent of the frogs measured and to its posterior border in the 

 others. The largest frog is 22 millimeters in head-and-body length. 



Phyllabates boulengeri deserves to be kept distinct from Phyllabates 

 jemoralis (Boulenger) because of small but constant differences. For 

 instance, the wide dark lateral stripe meets the white belly color 

 directly in boulengeri, but in jemoralis a narrow white stripe, bordered 

 below by a dark stripe, is found along the lateroventral region parallel- 

 ing the wide dark lateral stripe. The throat of boulengeri shows a wide 



