1887.] ^*^ [Cope. 



whitish line which is wanting from the anterior part of the body or head. 

 The lighter specimens have numerous dark-brown spots on the lighter 

 ground above. Several light vertical lines on the lip. Femur behind ob- 

 scurely and finely marbled. The concealed edge of the tibia and tarsus 

 dark cross-banded on a light ground. Below dirty white, dusted with 

 brown on the legs, sides and gular region, and frequently on the abdomen 

 also. 



M. 



Length of head and body 024 



" " " to posterior line of tympana 0075 



Width " "at " " " " 0083 



Length of fore leg ... .0115 



" " foot 0045 



" " hind leg from groin 033 



" " foot 0155 



" " " " minus tarsus 0103 



Fourteen specimens. 



FiRMISTERNIA. 



16. Engystoma ovale Schn. 



17. Dendrobates braccatus, sp. nov. 



Small. Second digit of manus ("first") much longer than third 

 ("second"). Skin tubercular. Muzzle overhanging lip, but not much 

 produced, truncate on superior view, about as long as diameter of orbit. 

 Nostril nearly terminal. Tympanic disc less than half diameter of eye. 

 Interorbital space much wider than eyelids. Tongue cylindric, entire. 

 When the fore leg is extended, the muzzle marks the middle of the fore- 

 arm. The muzzle marks the heel of the extended hind leg. Digital 

 expansions of foot smaller than tympanum, and larger than expansions of 

 fingers. The tuberosities of the upper surfaces are not prominent and in 

 a soft specimen they have disappeared entirely. Skin of back very porous ; 

 no distinct glandular folds. 



Black above, with a white line extending from one groin to the other, 

 over the tympanic drum, on the edge of the eyelid, and round the end of 

 the muzzle. Sides of head and body black ; a narrow white line com- 

 mencing below the nostril and extending to the humerus. Behind the 

 humerus a large pink spot, followed by a wide irregular light band to the 

 groin. A large pink spot in the groin and extending over the adjacent 

 part of the femur. This spot is sometimes obscured by dark bands run- 

 ning across it. Limbs dark colored above, the posterior face of the femur 

 similar, sometimes a bright spot under the knee. Under side of tibia with 

 pink areas enclosed by black boundaries. Borders of abdomen and front 

 of femur with small black dots. In some specimens there is a trace of 

 two pale lines on the back about equidistant from each other and from the 

 superior lateral lines. 



