HATRACHIA HAMKNTIA. 115 



third from the tympanic bone to the maxillary formed by the pi'O- 

 cessus mastoideiis, which reaches to that point of the maxillary where 

 this bone is united with the pterygoid. As in Ci/stujnat/ius, there 

 is a large os intercalare between the frontal and parietal bones, \vith 

 distinct sutures in one of the skeletons, which in another are con- 

 founded with those bones. The sides of the skull are more or less 

 ossified, accorrhng to the age of the individual. The coccygeal style 

 is not quite as long as the vertebral column, and provided with a 

 high, shaq) ridge. The claviculie are curved, with the convexity 

 behind ; in front of their symphysis is the manubrium stemi, half- 

 cartilaginous, not bifid ; the coracoid bones are rather feeble, dilated 

 at the stenial end, and joined behind wth a very large and broad 

 ossifying cartilage. Hiuneiiis with a moderate ridge, still lower in 

 the femur. The iliac l)oncs have a .slight longitudinal groove, are 

 just as long as the cms. and a little longer than the humeras. 



43. Hyla verreauxii. 



Ihmt. Ann. Sr. A\it. 1854, p. 171. 



Fingers free, toes broadly webbed ; head short ; muzzle angular, 

 obtuse ; lorcal region concave ; tympanum much smaller than the 

 eye; tongue slightly nicked behind; upper parts smooth, a glan- 

 dular fold above the tympanum. Above bro^\Ti, ^-ith a broad darker 

 band from bcitween the eyes to the vent. Now Holland. 



44. Hyla citropus. 



Hyla citropa, Peron and Lemcio-, MSS. ; Uum. ^- liihr. p. H(X). 

 Dendrohyas citropa, Tschudi, Bafr. p. 75. 



Fingers quite free ; toes only webbed at the base ; tongue cir(;ular, 

 entire and free behind. Port .Jackson. 



4. NOTOTREMA. 



Vomerine teeth. Skin of back glandular, of crown smooth ; no 

 large gland. Bisks rather large ; fingei-s and toes elongate, veiy 

 slightly webbed. . Tympanum distinct ; eastachian tubes moderate ; 

 tongue large, nearly circular, vei-y slightly notched behind. Trans- 

 verse process of sacral vertebra equally dilated from the base. Male 

 with an external subgnlar vocal sac ; female with a pouch on the 

 hinder part of the l)ack. Peni ; Mexico. 



Hyla, sp., Ditm. ^- Bibr. viii. p. 598. 

 Gii-strothecft*, Fifz. Si/sf. Rept. p. 30. 



• Fitzinger appears to have believed in the existence of a pouch on the belly ; 

 his denomination is derived from yaarrip belly, and OtiKt), used by the old anato- 

 mists for the brain-pan ; therefore I think myself justified in not accepting hia 

 name. 



1 y 



