FROGS OF COLOMBIA — COCHRAN AND GOIN 61 



lateral band, its sinuous lower margin emphasized by a narrow darker 

 line; a pale ecru stripe beginning behind eye and bordering the dark 

 lateral stripe above, then descending diagonally across it and con- 

 tinuing as a pale elongate spot just in front of groin, apparently 

 continued on anterior proximal surface of femur; posterior femur 

 tibia, and forearm covered by coarse dark reticulations extending to 

 upper limb surfaces as dark crossbands; venter ecru drab, with a few 

 cinnamon spots on lower femur and tibia; soles of feet and palms of 

 hands russet, the tubercles, disks, and webs paler. 



Remarks. — While some freshly preserved frogs are more or less 

 clove brown, others are light brown, showing three darker chevrons 

 on the back — the first chevron between the upper eyelids, the second 

 between the shoulders, and the third on the sacrum. The light lateral 

 stripe in front of the groin is most noticeable, sometimes narrowing 

 and extending to the shoulder, sometimes breaking into a series of 

 small light dots. This light extension lies across the center of a wide 

 dark longitudinal stripe originating on the tip of the snout and con- 

 tinuing to the groin. On lighter examples this dark stripe often is 

 apparent, but sometimes it is suggested only by small light and dark 

 spots along the side on both borders of the lateral stripe. The white 

 stripe often continues along the front of the femur, although it may be 

 interrupted by the dark femoral crossbands. 



Sometimes the venter is nearly immaculate except for some scat- 

 tered dark spots around the chin, and sometimes it is heavily spotted 

 over the entire belly, with some large dark spots on the lower outer 

 limb surfaces. 



The adpressed heel reaches the center of the eye in half the frogs 

 examined and to the anterior or the posterior corner of the eye in the 

 other half. The first finger is longer than the second, sometimes 

 considerably and sometimes slightly so. Several males from El Centro 

 (USNM 150174, 150176-7) have the membranes of the third finger 

 widened into large "flanges." The webbing of the toes is quite variable 

 being a mere trace in some frogs but extending for about one-fourth 

 the length of the fourth toe in others. The venter is smooth in nearly 

 all examples at hand, although a few show granules on the lower femur 

 and beside the vent. 



A young specimen from El Centro (USNM 150185) that measures 

 10 millimeters in head and body length is fully metamorphosed, having 

 no tail or other larval characteristics. An 8-millimeter tadpole from the 

 same place (USNM 150186) has a tail 9.5 millimeters long, although 

 the limbs are fully formed. 



Nearly all preserved specimens show abrasions of the skin. 



