THE BATEACHIA OF NORTH AMERICA. 385 



AA. Terminal phalanges simple. 



Pupil erect; palatine teeth normal ; toes free; extremities enlarged 



Callulops Blgr. 



Pupil horizontal; tongue free behind ; no vomerine teeth; fingers and toes 

 free Cacosternuin Blgr, 



Ear fully developed ; head not distinct ; membranum tympani concealed ; 

 toes free to slightly palmate; metatarsus with insignificant tubercles 

 Engystoma Fitz. 



"Ear developed, membranum tympani concealed; toes free to partially pal- 

 mate; metatarsus with two compressed shovel-like tubercles" 

 Cacopus* Gthr. 



"Ear developed, membranum tymi^ani distinct externally ; toes free ; meta- 

 tarsus with insignificant tubercles" Adenomera Steind. 



The species of this family are distributed as follows : 





Austra- 

 lian. 



Neotrop- 

 ical 



Nearctic 



Ethiopian. 



Palseotrop- 

 ical. 











2 



1 











5 













1 



Callula '. 











7 





1 

















] 







1 











7 



1 













3 







1 





















2 



8 



1 



3 



17 



ENGYSTOMA Fitzinger. 



N. Class. ReptiL, p. 65 ; Giinth. Cat., p. 51 ; Boulenger, Cat.fBafcr. Sal. Brit. 

 Mus.,2ded.,1882, p. 160. 

 Microps Wagl., Isis, 1828, p. 744, and Syst. Amph., p. 200. 

 Stenocephalus Tschudi, Batr., p. 86. 

 Engystoma, SI)., Dum. & Bibr., vili, p. 738; Cope, Journ. Ac. Phila. (2),vi, 1867, p. 



194. 

 Sy stoma, sp., Cope, I. c. 



ENGYSTOMA CAEOLINENSE Holbrook. 



N. Amer, Herp., i, p. 83, PL 2; Dum. & Bibr., p. 743; Hallow., Proceed. 



Ac. Phila., 1856, p. 251; Giinth., Cat., ed. i, p. 51; Boul., Cat. Batr. 



Sal. Brit. Mus., 1882, p. 162. 

 Engystoma olivaceum Hallow., I. c. 

 Engystoma texense Girard, Proceed. Ac. Phila., 1859, p. 169. 



Snout rather obtuse, slightly projecting, not twice as long as the 

 diameter of the eye. Fore limb considerably longer than its distance 

 from the tip of the snout; the hind limb being carried forwards along 

 the body, the tibio-tarsal articulation reaches the shoulder in the 

 female, a little beyond in the male. Toes quite free, with blunt tips and 

 distinct subarticular tubercles ; a very small inner metatarsal tubercle; 

 no outer tubercle. Skin smooth; a fold across the head behind the 

 eyes, which is, however, not unfrequently wanting in alcoholic speci- 



* Including Glyphoglossus Gthr. 



1951— Bull. 34 25- 



