CATALOGUE OF VERTEBRATES. 641 



broadly webbed ; only three toes with claws; nostrils terminal, 

 crescent shaped ; plastron white ; head, &c., olive green, with 

 stripes ; legs mottled ; back olive brown, with dark spots ; male 

 with tubercles on front of carapace, smaller than in female ; body 

 also longer. 



" This salt-water turtle is quite abundant on our sea- board, 

 but is nowhere very numerous. They are found in all the salt- 

 water rivers and creeks." 



AMYDA, Ag. 



A. mutica, Less. Leathery Turtle. Soft-shelled Turtle. 



Nostrils under tip of snout ; a depression along middle of 

 carapace ; no spines on anterior margin, &c. ; feet not mottled. 



" Very rare. An occasional specimen has been met with in 

 the Raritan River. None appear to be found in the Delaware. 

 Occasionally seen in the Hudson." 



SAURII. 



Family IGUANIDJE. 



SCBLOPORUS, Wieg. 



S. undulatus, Harl. (tropidokpis.} Tree Swift. Pine-tree Lizard. Fence 

 Lizard. 



Head broad, not spinous ; greenish, bluish or bronzed, with 

 black, wavy cross-bands above ; throat and sides of belly with 

 blue or green; dorsal scales carinated; tail slender, brittle. 

 Length, 7 inches. Varies much in color. 



" This and the following are the only true lizards found within 

 State limits, and the present species is much the more commonly 

 met with of the two. It appears to be about equally distributed 

 throughout the State, and disappears from localities in proportion 

 as the timber is cut off. The popular appellation of 'fence 



