NdRTII A^rKKKAX IJATRAC III A AM) KICI'TI !.l A . 49 



ble: back with or without a crest; upper jaw rounded at end, 

 even with the k)wer; rostral erect. 



U'2. A. pri7icij?alis, Linn. (xreen Lizard; Floridan Cha- 

 meleon. Head pyramidal, broad and flattened; tail rounded and 

 tapering, covered with imbricate scales, which are larger than 

 those of the body; length more than one and one-half times that 

 of head and body ; color of head brown ; of body above, varying 

 through all shades from bright ]iea-green to bronze-brown; a 

 hgliter dorsal stripe; back and sides with tine brown zigzag lines ; 

 body below asiiy, greenish, or soft white; loose skin on throat 

 with longitudinal brown lines ; sometimes scarlet ; no crest. 

 Austroriparian region. 



Family GECCONID^. 

 (-renus SpH.ERODACTYLrs, Cuv. 



Scales of back equal, granular or rhombic; tail with a 

 central series of shields; neither femoral nor preanal pores; eye- 

 lids circular. Toes with a single series of transverse plates beneath ; 

 clawless, with a terminal compressed point; free, slender, sub- 

 cylindrical at base, with a small, entire, circular terminal disk, 

 convex beneath. 



93. S. 7iotatus, Baird. Scales on back ami sides large, 

 strongly carinated, on belly smaller, smooth, hexagonal; above 

 light brownish-yellow; dotted all over with reddish-brown, most 

 distinctly on head and least on belly. Key West, Fla. (Cuba). 



Order TEST UD IN AT A. 



Synopsis of F^amilies. 



A. Forearm and hand, and leg and- foot, in the form of 

 wings or paddles; not capable of distinct movements at wrist 

 and ankle joints ; digits flattened, elongated, and bound immov- 

 ably together by the integument. 



a. Feet scaleless; the anterior pair very large; the pos- 

 terior smaller but broad Sphargididcp. 



h. Feet covered with scales Cheionida'. 



B. Limbs not in the form of paddles, capable of distinct 

 movements at wrist and ankle joints. 



a. Shield leathery, incompletely ossified; feet with few 

 scales; head long and pointed; body very flat. 



Trionyclddw,. 



