124 PROCEEDINGS OF THE ACADEMY OF 



the posterior face of the femur, and one large confluent one on the 

 front of femur and groin, which is on the former notched above by 

 two or three blaclc spots. 



M. 



Length of head and body 044 



" of head to angle of jaws 015 



Width " above angle of jaws 015 



Length of hind limb 070 



" "foot 030 



" " tarsus 013 



From Nauta. 



The species of this genus ma}^ be divided as follows : 



Fingers webbed. 8. venulosus. 



Fingers free. 8. aurantiacus. 



Heel extending to beyond muzzle. 8. funereus. 



Heel not reaching end of muzzle. 

 Skin smooth above. 8. allenii. 



8. xsignatus. 



8. cryptanthus. 

 Skin arrolate above. 8. ruber. 



8. acuminatus. 

 Scy topis amantiacus, Daudin. 



Nauta. 

 Nototrema marsupiatum, Derm. Bibr. Evp. Gen. viii. 598. 



Nauta; in two specimens, the ethmoid is uuossified above, while 

 there is no fronto-parietal fontanelle. 



Family CYSTIGNATHIDJE. 

 Subfamily Cystignathi. 



Bubonias plicifrons, gen. et sp. nov. 



Fronto-parietal bones fully ossiQed, nasals separated. Xiphis- 

 ternum, an osseous stjle with disk. Auditory organs well de- 

 veloped. A large gland in the inguinal region ; no tarsal shovels 

 nor spurs. Maxillary, but no vomerine teeth. Form, toad-like. 



This genus it is evident presents characters of Liujperus in 

 dentition, Pleurodema in glands and feet, and Cystignathus in 

 cranial structure. 



Char. Bjiecif. Head narrow, with elevated lores. Membranum 

 t^'mpani oval, its long axis directed upwards and forwards, and 

 nearly equal in length to that of the eye. The latter equals the 

 length from its border to the end of the (osseous) muzzle. Skin 



