912 CYSTIGNATHID.X. 
24. Hylodes diastema. 
Lithodytes diastema, Cope, Jowrn. Ac. Philad. (nu. 8.) vill. 1876, 
p- 155. 
Tongue obpyriform, rounded behind. Vomerine teeth in two very 
short transverse patches behind the choanz. Snout depressed and 
narrowly truncate, with obtuse canthus rostralis ; the diameter of 
the orbit equals the length of the snout ; nostril subterminal ; tym- 
panum indistinct, with a diameter of less than half that of the eye- 
slit; eustachian tubes minute. First finger shorter than second ; 
toes short; disks of fingers and toes large. The hind limh being 
carried forwards along the body, the tibio-tarsal articulation reaches 
beyond the tip of the snout. Above dark brown; darker brown 
between the eyes, which is bordered with paler anteriorly ; below 
pale brown. 
Panama. 
25. Hylodes surdus. (Pxrare XIV. fig. 3.) 
Tongue oval. Vomerine teeth in two small groups close together 
behind the choanz. Snout rounded, as long as the orbital diameter, 
with distinct canthus rostralis; nostril equally distant from the eye 
and the tip of the snout; interorbital space as broad as the upper 
eyelid; no tympanic disk; eustachian tubes minute. Fingers 
moderate, first shorter than second ; toes moderate, quite free; disks 
well developed; subarticular tubercles moderate; two metatarsal 
tubercles, the outer rather indistinct. The hind limb being carried 
forwards along the body, the tibio-tarsal articulation reaches between 
the eye and the tip of the snout. Skin smooth; belly slightly 
granular. Dark brown above; snout lighter; a dark streak from 
the tip of the snout through the eye to the shoulder; three dark 
streaks from the eye to the lip; three chevron-shaped markings on 
the back; limbs with dark, light-edged cross bars; hinder side of 
thighs black, white-spotted ; throat and belly brown, marbled with 
darker; flanks and lower surface of hind limbs yellowish, marbled 
with dark brown. From snout to vent 37 millim. 
Ecuador. “ 
re as W. Ecuador. Mr. Fraser [C.]. 
Bo S, America. 
26. Hylodes glandulosus. 
Hylodes glandulosus, Bouleng. Bull. Soc. Zool. France, 1880, p. 47. 
Tongue subcircular, slightly nicked behind. Vomerine teeth in two 
groups directed backwards, commencing from the inner hinder edge of 
the choane. Snout short, rounded, with distinct canthus rostralis ; 
tympanum hardly one third the diameter of the eye. ‘Toes quite 
Po tee 
