DEXDEOBATES. 



145 



with large whitish spots ; a few small whitish spots under the 

 limbs, 

 t-^'. d ? • Chyavetas, E. Peru. 



D. As ill var. B, but with white spots on the back ; belly whitish, 

 marbled with brown. Perhaps a distinct species. 

 I. Hgr. S. Domingo. 



4. Dendrobates lugubris. 



Dendrobates lugubris, Schmidt, Denhsclir. Ac. Wien, 1858, p. 250, 

 pi. 2. f. 14. 



Allied to B. trivlttatus. It differs from the latter in the propor- 

 tions of the fingers (the first not extending as far as the second) 

 and the larger disks. The tarso-metatarsal articulation reaches a 

 little beyond the tip of the snout. Skin smooth. Elack ; a whitish 

 line along the side of the back, the outer edge of the upper eyelid, 

 and the canthus rostralis, confiuent with its fellow on the end of 

 the snout ; lower surfaces marbled with whitish ; a whitish line from 

 below the eye to the shoulder. Size very small. 



Colombia. 



ff, cJ. . ' Bogota. Mr. Marks [P.]. 



5. Dendrobates talamancse. 



Dendrobates talamancse, Cojie, Joiirn. Ac. r/u'lcuh (n. s.) viii. 1876, 

 p. 102, pi. 23, f. 6. 



Allied to D. luguhris. First finger longer than the second. Heel 

 marking the middle of the orbit. Skin entirely smooth. Colour 

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

 of the lower surfaces ; top of muzzle, and a band from the eye to 

 groin on each side, yellowish. 



Costa Eica, 



0. Dendrobates parvulus. (Plate XII, fig, 6.) 



Snout truncate, as long as the diameter of the eye ; lorcal region 

 vertical ; interorbital space a little broader than the upper eyelid ; 

 tympanum moderately distinct, nearly half the diameter of the eye. 

 Fingers slender, first extending beyond second ; toes slender ; tips of 

 fingers and toes dilated into rather small disks : subarticular tubercles 

 distinct ; two scarcely prominent metatarsal tubercles. The hind limb 

 being carried forwards along the body, the tarso-metatarsal articu- 

 lation reaches far beyond the tip of the snout. I3ack tubercidar. 

 Black ; upper surfaces closely punctated with whitish, most distinctly 

 on the head and the front part of the back ; lower surfaces marbled 

 with bluish grey. Male with a subgular vocal sac. From snout to 

 vent 22 milhm. 



Ecuador. 



