CLASSIFICATION 139 



I. Aglossa. Sacral diapophvses dilated. ) .riT r\oo * ■■ .0 

 \T ^ u • j-i 1 -ti 1 AuLUbteA, 1). 143. 



Vertebrae opisthocoelous, with ribs. J ' ^ 



II. Phaneroglossa. 



A. Arcifera. 



a. Sacral diapopliyses dilated. 



a. Terminal phalanges not claw-shaped. 



Opistliocoelous, with ribs, '^' IdISCOGLOSSIDAE, p. 152. 



Procoelous, without ribs, ^JBUFONIDAE, p. 166. 



Procoelous, or opisthocoelous, "j 



.v,-.hnn. ,.,-h. "^ 1-PELOBATIDAE, p. 160. 



f max. A mphignathodon- 

 I uiaiid. 



without ribs, '""""' j 



/3. Terminal phalanges claw-shaped— I ma-iid. tinae, p. 188. 



HYLIDAE'I max. „ ,. ,_. 



I nyiinae, p. 189. 



' max. Hemiphractinae, 



b. Sacral diapophyses cylindrical — 



CYSTIGNATHIDAE 



maud. P- 210. 

 max. Cijstignathinae, 

 ~0~ P- 211. 



Dendrophryniscinac, 

 p. 227. 



B. Firmisternia. 



Tmax 



a. Sacral diapoi)hyses dilated — 



EXGYSTOMATIDAE 



h. Sacral diapophyses cylindrical — 



RANIDAE 



Dyscophinac, p. 235. 



Genyophryninae, 

 mand. P- 236. 



- En(/ysto'iaatinar, p. 225. 



max. Ceratohatracliinac , 

 mand. P- 237. 



— — Raninae, p. 238. 

 ^ 



- Dcndrohatinae, v>. 272. 

 -0 ^ 



Concerning the evolution of the classification of the Anura, 

 it is interesting to follow the changes of the value attached 

 to the various anatomical characters by systematists. At first 

 the presence or absence of teeth and of adhesive discs on the 

 fingers and toes were considered to be of prime importance for 

 the division of the Phaneroglossa. 



Dumeril et Bibron, 1841. " EriDetologie generale." 



I. Phrynaglosses = Aglossa of Wagler : Pi'pa awd Xenopus. 

 II. Phan^roglosses. 1. With teeth, a. Without discs : Raniibrmes. 



/). With discs : Hylaefornies. 



2. Toothless .... Bufoniformes. 



Stannius, 1856 (see p. 8), separated the Engystomatidae as '' Systomata," 



and used the presence or absence of the " manubrium sterni " (omo- 



sternum) as a cliaracter of distinction between hi.s Bufoninae and Eaninae. 



