EEPTILIA. 253 



b) Upper jaw edentulous. 



t A2nces of fingers and toes dilated orbicularly. 



Dendrobates TsCHUDT [Hylaplesia BoiE in part). Tongue ob- 

 long, posteriorly free. Teeth in palate none. Glandular tuberosi- 

 ties at the sides of head none. Membrane of tympanum naked. 

 Fingers and toes cloven. 



Sp. Dendrobates tinctorius Wagl., ITyla tinctoria Daud., Rain. Gren. Crap. 

 PI. 8, DUM. et BiBE. Rept. PL 90, fig. i ; South America. The habitus is 

 entirely that of Hyla. 



Hylcedacti/his DvM. and BiBR. [Hyladacty la T^cn\Ji>l) . Tongue 

 large, adnate, free at the margin only. Palatine teeth. No glan- 

 dular tuberosities at the sides of head. Membrane of tympanum 

 latent. Head depressed, immersed in trunk. Body broad, feet 

 short. Fingers cloven, toes semipalmate. 



Sp. Hylcedactylus baleatus, Bombinator baleatus (? sic) Muell. ; Java. 



tt Apices of fingers and toes not expanded. 

 * Membrane of Tympanum distinct. 



Bufo Laur., Merr. (excl. of some specie,=«). Teeth none. 

 Tongue oblong, oval, free posteriorly. Anterior limbs tetradacty- 

 lous, cloven, posterior pentadactylous, mostly semipalmate. Tu- 

 berosity on both sides behind the eyes, above the tympanum, 

 porous, cushioned. 



Toads. — This geuus contains nocturnal animals which hide them- 

 selves during day-light. Two ciishion-shaped gi'oups of glands 

 occur here, as in the salamanders, improperly named ]KorotAds in 

 descriptive zoology. The head is obtuse in front ; the upper jaw de- 

 scends directly downwards, so that the intermaxillaiy bones do not 

 project in front of the cranium. A similar form of the upper 

 jaw occurs in most of the Hylce, whilst in the frogs [Ranee) it is 

 very flat and runs into a shai-p edge, so that the intermaxillary 

 bones lie nearly horizontal in front of the cranium. 



Sp. Bufo vulgaris Laur., Rana bufo (and Rana rubeta) L., Eoesel Ran. 

 Tab. •20, 11, St0KM Beutschl. Fauna, Amphib. Heft i. (figures of 

 Roesel), Guerin Iconogr., Rept. PI. 27, fig. i, Bell Brit. Rept. p. 115 ; 

 usually grey-brown, a black stripe externally along the parotids. — Bufo 

 viridis Dum. and Bibr. {Bufo calamita and Bufo viridis Laur., Rana 

 porientosa Blumenb., Bufo variabilis Pall.), Eoes. Ran. Tab. 21, Sturm 

 1. 1. Daud. Rain., Gren. et Crap. PI. 28, figs, i, 2 ; smaller than the preceding ; 



