416 HYLID®. 
o. NOTOTREMA. 
Hyla, sp., Dum. § Bibr. viii. p. 598. 
Gastrotheca, F' tzing. Syst. Rept. i. p. 30. 
-Notodelphys, Weinland, Mon. Berl. Ae. 1854, p. 0-372. 
Nototrema, Giinth. Cat. p. 115; Cope, Nat. Hist. Rev. 1865, p. 109, 
and Journ. Ac. Philad. (2) yi. 1866, p. 85. 
Opisthodelphys, Giinth. l.c. p. 117; Cope, Nat. Hist. Rev. 1865, 
p. 109, and Journ. Ac. Philad. (2) ‘vi. p. 86. 
Pupil horizontal. Tongue subcircular, entire or slightly nicked, 
little free behind. Vomerine teeth. Tympanum distinct. Fingers 
webbed at the base ; toes webbed, the tips dilated into regular disks. 
Outer metatarsals united. Female with a dorsal pouch. Omo- 
sternum cartilaginous; sternum.a cartilaginous plate. Diapophyses 
of sacral vertebra moderately dilated. 
Tropical America. 
Synopsis of the Species. 
I. Derm of head free from cranial ossification. 
Tibio-tarsal articulation not reaching be- 
yond the eye; interorbital space not 
broader than the diameter of the orbit. 1. marsuptatum, p. 416. 
Tibio-tarsal articulation not reaching be- 
yond the eye; interorbital width 
greater than the diameter of the orbit. 2. plumbeum, p. 417. 
Tibio-tarsal articulation reaching nearly 
the tip of the snout; skin of back with 
BAEC OOSTES st yeya haters og Ginter Ak so bs 3. testudineum, p. 417. 
Tibio-tarsal articulation reaching beyond 
Tneiwiy OL the (smOUp  .-: 260. od bevet les 4. longipes, p. 418. 
II. Derm of head completely involved — 
in the rugose cranial ossification .. 5. oviferum, p. 418. 
1. Nototrema marsupiatum. 
Nototrema marsupiatum, Giinth. Cat. p. 116, pl. 10.f. B. 
Hyla marsupiata, Dum. § Bibr. p. 598, pl. 98; Guichen. in Casteln. 
‘Anim. nouv. ou rares de Vv Amér. sie Sud, Rept. p. 86. 
Nototrema marsupiatum, Giinth. Proc. Zool. Soc. 1859, p. 417; 
Espada, Viaj. Pacif., Vertebr. pl. 4. f. 1. 
Tongue subcircular, slightly nicked and free behind. Vomerine 
teeth in two short straight series on a level with the hinder edge of 
the choane. Head moderate, broader than long; skull rugose in 
the adult, the derm of the head, however, remaining free; snout 
rounded, much longer than the diameter of the eye; loreal region 
not concave; canthus rostralis distinct; iterorbital space broader 
than the upper eyelid, concave in full-grown specimens ; tympanum 
