REPTILIA. 253 



b) Upper jaw edentulous. 



t Apices 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., Hyla tinctoria DAUD., Rain. Gren. Crap. 

 PL 8, DUM. et BIBB. Kept. PL 90, fig. i ; South America. The habitus is 

 entirely that of Hyla. 



Hylcedactylus DUM. and BIBR. (Hyladactyla TsCHUDl). 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. 



ft Apices of fingers and toes not expanded. 

 * Membrane of Tympanum distinct. 



Bufo LAUR., MERR. (excl. of some species). 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 genus contains nocturnal animals which hide them- 

 selves during day-light. Two cushion-shaped groups of glands 

 occur here, as in the salamanders, improperly named parotids in 

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

 scends directly downwards, so that the intermaxillary 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 sharp edge, so that the intermaxillary 

 bones lie nearly horizontal in front of the cranium. 



Sp. Bufo vulgaris LAUB., Rana bufo (and Rana rubeta) L., ROESEL Ran. 

 Tab. 20, 21, STUBM DeutscTil. Fauna, Amphib. Heft I. (figures of 

 ROESEL), GUEBIN Iconogr., Rept. PL 27, fig. i, BELL Brit. Rept. p. 115; 

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

 viridis DUM. and BIBB. (Bufo calamita and Bufo viridis LAUB., Rana 

 portentosa BLUMENB., Bufo variabitis PALL.), ROES. Ran. Tab. 2 1, STUBM 

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



