404 NEW YOEK STATE MUSEUM 



Four families : 1 Bufonidae, toads 



2 Pelobatidae, burrowing toads 



3 Ilylidae, tree frogs 



4 Ranidae, frogs 



Family 1 bufonidae 

 Represented by one species. 



19 Bufo lentiginosus (Shaw) 



Common toad 



Be Kay. Bufo a m e r i c a n u s , p. 67, pi. 19, flg. 46 (young); pi. 20, fig. 



52 (adult) 

 Yellowish brown with a yellow vertebral line and some brownish 

 spots, but variable ; -adults very warty ; young smooth. 



Common everywhere. Their eggs are laid in the spring and are 

 inclosed in a long, thin-walled tube of transparent albuinen, which 

 lies in strings on the bottom of the ponds where they are laid. The 

 young attain the adult form at a very much earlier period of their 

 life than the frogs. 



Family 2 pelobatidae 

 Burrowing toads 

 Represented by one species. 



20 Scaphiopus holbrookii Harlan 



Spadefoot 



De Kay. Scaphiopus solitarius, the hermit spade foot, p. 66, pi. 19. 



fig. 47 

 Olive brown, a yellowish band on each side from eye to coccyx ; 

 a horny, spadelike process on each side of hind foot. Widely dis- 

 tributed, Ijut rarely seen. It remains in burrows which it digs in 

 the earth and lays its eggs in temporary ponds which are formed by 

 rain. Metamorphosis may be very rapid. 

 Reported by De Kay from Rockland county. 



Family 3 hylidae 

 Tree frogs 

 Small forms, generally inhabiting trees or bushes and frequently 

 possessing the power of adapting their color to the color of the object 

 on which they rest. Generally with the tips of their toes expanded 

 to form disks. Eggs laid in water, in smaller packages than those 

 of the true frogs. 



