190 BATllACHIANS. 



3. ACRIS, Dumeril and Bibroii. Cricket Frogs. 



1. A. gryllus, (Le C.) var. crepitans, (Baird) Cope. 

 Cricket Frog. Brownish above; middle of back and 

 head bright green; a dark triangle between the eyes; 

 sides with three oblique blotches; a white line from eye 

 to ear. E. U. S. (the typical gryllus southward.) 



FAMILY LXXX.— BUFONID^. 



{The Toads.) 

 Maxillaries toothless; toes weighed, not dilated at their 

 tips; ear well developed; skin usually warty. Genera 

 three, species thirty; in every part of the world except 

 Australia. Most of them belong to the familiar genus, 

 Bxfo, 



1. BUFO, Laurenti. Toads. 



1. B. lentiginosus, Shaw. American Toad. Brown- 

 ish olive with a yellowish vertebral line and some 

 brownish spots; adults very warty; young nearly smooth. 

 U. S., very common, variable; the northern form is var. 

 cunericanus (Le C.) Cope. 



ORDER X.-XJRODELA. 



{The Salamanders.) 

 Body naked, elongated, subcylindrical; four limbs 

 developed; tail persistent, usually much longer than 

 brcmd, terete or compressed; no external branchiae when 

 adult. 



FAMILY LXXXL— SALAMANDRID.E. 



{The NeiPts.) 

 Vertebne concave behind only (opisthocoelian); carpus 

 and tarsus ossified. Palatine teeth in two series diverg- 

 ing; backward; no parasphenoid teeth. Species, 25, 

 mostly Kuropean. 



