102 



ON THE BATRACHIA AND REPTILIA OF COSTA RICA. 



14. Atelopus VARiTJS, Stannius. 



Very abundant both on the Pico Blanco range, and in the lower country. 

 The markings are vermilion on a black, or, in the case of the mountain specimens, 

 a green ground. In some of the latter the red markings are few, and in others 

 altogether wanting, leaving a uniform pea-green. 



15. Dendrobates typographus, Keferstein, Archiv. f. Naturgeschichte, 1868, p. 298, PI. IX. fig. 1. 



Deyxdrohates ignitiis, Cope, Proceed. Academy, Phila., 1814, p. 68. 

 The form described by me as D. ignitus differs from the one observed by Kefer- 

 stein, in the uniform red of the dorsal region. Both occur in Mr. Gabb's collection. 

 From the low country, not more than ten miles inland. 



16. Dendrobates tinctorius, Wagl., var. auratus, Girard, Steindachner Verhandl. der K. K. 



Zool. hot. Gesselsch., Wien, 1864, p. 261. 

 Numerous, and exclusively from the lower country, not extending far inland. 



lY. Dendrobates talamanc^, Cope. 



Allied to the Dendrobates lugnhris, Schmidt, Denkschr. K. K. Akad., Wien, 



1858, p. 250. 



First finger longer than the second ; the skin of the upper surfaces entirely 

 smooth; tympanic membrane very obscure. Head elongate, muzzle depressed, 

 truncate, the nares equidistant from each other and the orbits. When the limbs 

 are extended, the wrist reaches the front, and the heel the middle of the orbit. 

 No tarsal fold ; palmar and solar tubercles insignificant. 



Color brown above, separated by a border of light pigment from the white of 

 the lower surfaces. This border continues as a light border of the upper lip round 

 the end of the muzzle. Top of muzzle, and a band from the eye to the groin on 

 each side, yellowish. Upper surface of fore limbs yellow. External surfaces of 

 femur and tibia covered with a light pigment. Posterior face of femur black, with 

 a short yellow band on each side directed outwards from behind the groin, forming 



with the light band of the superior face of the femur, a hook-shaped p 



Length of head and body . 

 " of head to angle jaw 

 Width of head behind 

 Length to orbit . 



to axilla 



of fore limb 



of fore foot 



of hind limb 



of hind foot 

 From near Old Harbor on the East coast 



attern. 

 M. 



.022 

 .008 

 .006 

 .003 

 .010 

 .011 

 .005 

 .027 

 .012 



