4, HYLA. 345 
d. Outer fingers perfectly free. 
a. Vomerine teeth in the middle between the choane, 
or on a level with the front edge of the latter. 
Tympanum hidden ; toes entirely webbed ; 
skin of upper surfaces shagreened...... 90. crassa, p. 396. 
Tympanum one third the diameter of the 
eye; toes hali webbed; snout not pro- 
[Ch BNG TEs AS Pap ah ete Weipa OP Rehan ens OMS 91. plicata, p. 396. 
Tympanum nearly as large as theeye; toes 
webbed at the base only ; two bony spines 
above tne tyMpanuMml.. 20.5. ceed se 92. spinosa, p. 396. 
(3. Vomerine teeth on a level with the hinder edge of 
the choane, or beyond the latter. 
Vomerine teeth opposite the posterior mar- 
Pe OLFGN EG CHOAUE svt dt ecas «she Bk 55. pulchrilineata, 
Vomerine teeth just behind the level of the [p. 378. : 
choane ; tympanum hardly visible; toes 
nou quite: halt webbed -.°o.05 03 ie haves os 98. pickeringi, 
Vomerine teeth behind the level of the [p. 399. 
choane ; toes three-fourths webbed.... 104. punctariola, 
Vomerine teeth behind the level of the [p. 401. 
choane ; toes about half webbed; back 
WeGNeers ash ct., Sseseas, Soa sich of dhe wake Ce, sees 108. spilomma, p. 402. 
Tympanum one third the diameter of the 
eye; toes half webbed ; snout projecting 99. curta, p. 399. 
Tympanum one fourth or one fifth the dia- 
meter of the eye; toes two-thirds webbed; 
tibio-tarsal articulation reaching the 
PIPEOE GUE. SMOUL: ¢ cic... cache ea ae 100. eleochroa, p. 399. 
Tympanum larger than the eye; toes webbed 
Spr b ROC WEE ONLY +f. «sets oust as sepa 102. gracilipes, p. 400, 
Snout very prominent ; toes half webbed; 
tibio-tarsal articulation marking the front 
DEA MOLOE DUG eo acAet airy sears ee 103. staufferi, p. 400. 
Tympanum one fifth the diameter of the 
eye; tibio-tarsal articulation reaching 
nearly the tip of the snout; tympanum 
overhung by a thick dermal fold ...... 105. bistincta, p. 401. 
Tympanum somewhat more than half the 
diameter of the eye; toes three-fourths 
webbed; tibio-tarsal articulation reaching 
between the eye and the tip of the snout; 
snout twice as long as the diameter of | 
THO CVON vara eee ss hl eae aks ay 109. acuminata, p. 403. 
Tympanum about half the diameter of the 
eye; toes three-fourths webbed ; tibio- 
tarsal articulation reaching between the 
eye and the tip of the snout; snout once 
