GENERA OF THE ARCIFEROUS ANURA. 95 



No parotoid glands ; vomerine teeth wanting or in minute fasciculi ; 

 xiphisternum slender, without bony deposit. Abdominal integumen 

 usually areolate, .......... Crinia.* 



aaaa. Ethmoid arch completed by cartilage above ; digits free ; 

 no shovel. 

 No parotoids ; vomerine teeth ; pupil round ; auditory organs rudi- 



mental, ............ Eusophus. 



aaaaa. Ethmoid arch ? No metatarsal shovel. " Auditory organs 

 wanting." Toes slightly webbed. 

 Vomerine teeth ; no parotoids, ........ Alsodes. 



Group IV. Pleurodem^. — Frontoparietal bones embracing a fontanelle; auditory 

 apparatus developed ; digits free, or slightly webbed ; external metatarsals 

 bound, terminal phalanges simple ; xiphisternum an osseous style, with one or 

 more distinct terminal cartilage discs. Tongue entire. Cephalic derm free. 

 a. Inguinal glands ; pupil horizontal ; xiphisternal cartilage 

 emarginate or bifurcate. 

 Vomerine teeth ; prefrontals well separated ; terminal phalanges short, Pleurodema. 



aa. No inguinal glands ; pupil horizontal. 

 No vomerine teeth ; prefrontals entirely separMed ; terminal phalanges 



short, LiuPERUS. 



aaa. No inguinal glands ; xiphisternal cartilage entire ; pupil 

 erect. 

 Vomerine teeth ; prefrontals widely separated by the osseous ethmoid ; 



terminal phalanges elongate ; limbs elongate, .... Htlorhina. 



Group V. Htlodes. — Frontoparietal bones and auditory apparatus fully developed ; 

 digits free, or nearly so ; external metatarsi bound ; terminal phalanges with a 

 transverse limb, which supports dermal discs. Cranium elongate, plane. 

 Xiphisternum without style, scutiform, emarginate or bilobed, osseous or carti- 

 laginous. 



* Crinia i g n i t a m. sp. nov. 



Prefrontals well separated ; sides, throat, thorax and abdomen areolate ; back without folds, but with 

 numerous oval and elongate warts ; two metatarsal tubercles ; black, with scattered red spots ; groins and 

 femora behind red, pink varied ; limbs brown above, black banded ; below white. A strong short tarsal fold ; 

 toes narrowly margined ; base of fourth toe extends to nostril ; heel to orbit ; sacral region nearly flat ; tym- 

 panum indistinct, one-third orbit ; tubercles of palm numerous, strong, two exterior largest. A flat glandular 

 aggregation at rictus oris ; nostril as near lip as orbit. End of forearm to end of muzzle. Length of head 

 and body about an inch. 



This species has a considerably shorter head than the following. 



Habitat. — West Australia, Daniel. Mus. Acad. Nat. Sci. 



