416 



5. NOTOTREMA. 



Hvla, sp., Dum. § Bibr. viii. p. 598. 



Gitstrotheca, Fitzing. Syst. Ttepi. i. p. 30. 



Notodelphvs, Weinldnd, Mon. Deri. Ac. 1854, p. 37:2. 



Nototrema, Giinth. Cat. p, 115; Cope, Nat. Hist. Sen. 1865, p. 109, 



andJourn. Ac. Philad. (2) vi. 1866, p. 85. 

 Opisthodelphys, Giinth. I.e. p. 117; Cope, Nat. Hist. Rev. 1865, 



p. 109, andJourn. Ac. Philad. (2) vi. p. 85. 



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-taFsal articulation not reaching be- 

 yond the eye ; interorbital space not 

 broader than the diameter of the orbit. 1. marsupiatum, p. 416. 



Tibio-tarsal articulation not reaching be- 

 yond the eye: interorbital width 

 greater than the diameter of the orbit. 2. plwmbeum, p. 417. 



Tibio-tarsal articulation reaching nearly 

 the tip of the snout ; skin of back with 

 bony deposits ?>. testvdineum, p. 417. 



Tibio-tarsal articulation reaching beyoud 



the tip of the snout 4. longipes, p. 418. 



II. Derm of head completely involved 



in the rugose cranial ossification . . 5. oviferum, p. 418. 



1. Nototrema marsupiatum. 



Xototrema rnarsupiatum, Giinth. Cat. p. 116, pi. 10. f. B. 

 Hvla marsupiata, Dum. $" Bibr. p. 598, pi. 98; Guichen. in Cqsteln, 



Anim. nouv. ou rares de I'Amer. da Sud, Kept. p. 86. 

 Nototrema marsupiatum, Giinth. Proc. Zool. Soc. 1859, p. 417; 



Esjxida, Viaj. Pacif., Vertebr. pi. 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 choanae. 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 : interorbital space broader 

 than the upper eyelid, concave in full-grown specimens; tympanum 



