182 BATRACIIIA : SALIENTIA. — XXVII. 



this form l»v iK'^irL-es it di'volops into tin' adult animal, wliich is 

 always more or less frog-like. (Lat., saUtus, leapin;^.) 



Families of Salientia. 

 a. Toiif^uc present, nilliereiil in front, more or less free behind ; eustachian 

 tiilies widely .separated. 

 b. Thoracic 1 region capable of expansion: the free and diverpent ends of 

 the coracoid and precoracoid connected by two longitudinal cartila- 

 ginous bands, the cartilage of one aide overlapping the other. Toads 

 and Trce-toadi. (Arci/era.) 



c. I'jiper jaw toothless; toes webbed, not dilated at tip ; paratoids 

 (glandular bodies behind ear) generally present; terrestrial. 



liUK<JMD.K, 105. 



cc. Upper jaw with teeth. 



d. Fingers and toes tapering, without viscid disks; ours with a sharp 

 flat -edged spur at heel ; paratoids present; subterranean. 



PKLOIJATin.f., 106. 



dd. Fingers and toes more or less dilated at their tips, this dilation 

 forming a viscid disk; paratoids none in our species; chiitly 



arboreal IIyi.iI).*:, 107. 



ib. Thoracic region incapable of cxp.ansion, the two bands of cartilage 

 united in a median mass between the adjacent ends of the nearly 

 parallel coracoid and precoracoitl bones. Frogs. {FirmiMemm.) 

 e. Upper jaw toothless; diaiiophyses of sacral vertebrae dilated (tympa- 

 num hidden and toes free in our species). K.st.y.stdmatid.k, 108. 

 ee. Upper jaw with teeth; no paratoids; toes webbed, and usually fin- 

 gers also; tympanum evident; no viscid disks; sacral (liapoi)hyses 

 scarcely dilated Uamu.k, 109. 



Family CV. BUFONID^. (The Toads.) 



Jaws toothless; toes webbed, not dihated at their tips; sacra 

 vertebric with dilated processes; paratoids prominent. Genera 8; 

 species H5, in most warm re;xi'>ns. 

 a. Snout not pointed; no lateral fold of skin; skin more or less warty. 



BuFO, 262. 

 262. BUFO Laurcnti. (Lat. Toad.) 



.'ill. B. lentiginosus Shaw. Aw y. I ' ll t All ' Toad. Brownish 

 olive with a yellowish vertebral line and some brownish spots ; 

 two black patches below eyes; tymi)anMm larfre; adtilts very 

 warty ; vonnij nearly smooth ; a bony ridge above and behind eye; 

 jiaraloids elliptical. L., 3i. E. V. S., very common, variable; 

 the northern form is var. ai'nencanus (Le Coiitr) l>avii\g the bony 

 ridges moderate, not swollen behind; var. fowleri riitnam. Mass. 

 and N., has these crests much swollen and coalescent, " forming 

 an osseous boss on the skidl." (Lat., freckled.) 

 Family CVI. PELOBATID^. (Thk Rikkowinc Toai.s.) 



Upper jaw with teeth; heel tisnally provided with a more or less 

 developed spur. Genera 8, species 18 ; Europe and .Vmerica. 



I To undemtAud the cl>i»nirt<T of the Htructure )ipr.' tiriclly dcMcrilwd, llie student 

 Hhould .lisstnt a toiid (-irci/iroirO nu<\ n fn'C [lii-mi.-trrni.il., 



