154 EI^GTSTOMATID^. 



lower surfaces immaculate or marbled with brown on tlie throat and 

 under the limbs, Male with an internal subgular vocal sac. 

 E. S. America. 



a-c, Hgr. Demerara Falls. 



d-ff, (S 2 • Interior of Brazil. 



8. Phryniscus pulcher. (Pxate XIII. fig. 2.) 



Habit slender. Head a little longer than broad, its length con- 

 tained about twice and a half in females, twice and one third in 

 males, in the length of the trunk ; canthus rostralis angular ; sides 

 of head vertical ; snout subacuminate, truncate, projecting ; nostril 

 much nearer the tip of the snout than the eye ; the diameter of the 

 latter equals its distance from the nostril ; iuterorbital space broader 

 than the upper eyelid. Fore limb slender, a little longer than the 

 trunk ; fingers moderate, first very short, rudimentary ; no meta- 

 carpal nor subarticular tubercles. Hind limb rather slender, the 

 tibio-tarsal articulation marking the posterior corner of the eye ; toes 

 short, first quite indistinct, one-third webbed ; no metatarsal nor 

 sulnirticular tubercles. Skin quite smooth. Blackish brown above, 

 with light green markings, viz. a broad curved streak on each side 

 of the back, a few round spots on the head and back, and stripes 

 across the limbs ; lower surfaces carmine, more or less spotted with 

 black. Male with an internal subgular vocal sac. 



This species resembles very much A. Jiavcscens in general struc- 

 ture, bnt the head is narrower and the snout shorter. From snout 

 to vent 35 millims. 



E. Peru. 



a-e. (5 $ . Chyavetas. 



9. Phryniscus cruciger. 



. B. 



40. 



Phryniscus cruciger, Gihith. Cat. pp. 44, 130, pi. iii. fig. 

 Phrynidiuni crucigerum, Martens, Nomencl. Mus. Berol. p. 

 ? Phirix pachydermus, Schmidt, Denhschr. Ac. Wien, 1858, p. 256, 



t. 3. f. 20. ■ _ _ 

 ? Atelopus plauispiua, Espada, Viaj. Pacif., Vert, p. 148. 



Habit slender. Head longer than broad, its length contained 

 three times in females, twice and a half in males, in the length of 

 the trunk ; snout prominent, truncate, longer than the diameter of 

 the eyeball ; nostril nearer the tip of the snout than the eye ; inter- 

 orbital space broader than the upper eyelid. Fore limb slender, 

 longer than the trmik ; fingers webbed at the base, with swollen 

 tips ; first finger very short ; an indistinct metacarpal tiibercle ; 

 subarticular tubercles none. Hind limb rather elongate, the tibio- 

 tarsal articulation marking the eye ; toes half webbed, inner very 

 short but perfectly distinct ; tips of toes swollen ; metatarsal tubercles 

 indistinct; subarticular tubercles very indistinct. Upper surfaces 

 with flat warts. Olive above, punctulated with black, and with 



