188 CYSTIGNATHIDiE. 



teeth. Ear perfectl}- developed ; tympanum distinct. Fingei-s 

 and toes webbed, the tips dihxted into hirge disks. Outer metatarsals 

 separated ? No omosternum ; sternum a narrow cartilaginous 

 plate. Terminal phalanges bifurcate. 

 Ecuador. 



1. Centrolene geckoideum. 



Ceutrolene geckoideum, E^pada, I. c. p. 88, and Viaj. Pacif., Vertehr. 

 pi. 2. f. r,: 



Vomerine teeth in two oblique groups between the choanae. 

 Fingers half webbed, the membrane extending as a fringe to the 

 disks ; toes entirely webbed. Humerus with a strong spine. Skin 

 of upper surfaces granular and tubercular. Greyish above ; hands 

 and feet darker. 



Eio Napo, Ecuador. 



3. MIXOPHYES. 



Mixophyes, Giinth. Proc. Zool. Soc. 1864, p. 46 ; Cope, Nat. Hist. 

 Rev. 1865, p. Ill, and Journ. Ac. Philad. (2) vi. 1866, p. 93. 



Pupil vertical. Tongue circular, entire, free behind. Yomerine 

 teeth. Tympanum distinct. Pingers free ; toes webbed, the tips 

 not dilated. Outer metatarsals separated by web. Omosternum 

 cartilaginous ; sternum a cartilaginous plate. Terminal phalanges 

 simple. 



Australia. 



1. Mixophyes fasciolatus. 



Mixophyes fasciolatu.?, Giinth. Proc. Zool. Soc. 1864, p. 46, pi. 7. 

 f. 1, a7id Ann. •^^ Mag. N. 11. (o) xiv. p. 311 ; Steindachn. Novara, 

 Antph. p. 10; Kef erst. Arch.f. Natwy. 1868, p. 255, pi. 5. f. 6. 



Vomerine teeth in two straight series between the choanaj. Head 

 large ; snout rounded ; iuterorbital space as broad as the upper 

 eyelid ; tympanum three fourths the width of the eye. Fingers and 

 toes slightly swollen at the tips ; first finger slightly longer than 

 second ; toes two-thirds webbed ; subarticular tubercles well deve- 

 loped ; inner metatarsal tubercle elongate, oval, compressed ; no 

 outer tubercle. The hind limb being carried forwards along the body, 

 the tibio-tarsal articulation reaches the tip of the snout. Skin 

 smooth ; a slight fold above the tympanum. Brownish olive above, 

 indistinctly marbled with darker ; a dark cross band between the 

 eyes ; a black band from the tip of the snout through the eye to 

 behind the tympanum ; limbs with narrow black cross bars. Male 

 with a subgular vocal sac. 



E. Australia. 



n, &. d ? ■ Clarence Eiver. CI. Krefft, Esq. [P.]. (Types.) 



