64 MANUAL OF NATURAL HISTORY 



IT. SUB-ORDER. — Thick-tongued Lizards (Pachy- 

 glossata). 



Tongue thick, convex, attached to the gullet at 

 the base. 



3. TRIBE. — Nyctisaurians (Nyctisauria). 



Scales of belly small, rhombic, imbricate ; of back 



and sides granular; tongue thick, short, convex, 



slightly nicked; eyes nocturnal; eyelids circular, 



not conni vent ; pupil linear, erect ; body depressed ; 



toes sub-equal, lamellar beneath. 



24 Family. — Gekkoes (Gekkonidse). Body depressed, 



sometimes fringed on the sides ; pupil linear, 



rarely round ; eyes nocturnal ; scales of belly 



small, rhombic, imbricate ; of back and sides 



granular; feet for walking; toes generally 



dilated. 



4. TBIBE. — Strobilosaurians (Strobilosauria). 



Scales of belly small, rhombic, imbricate ; of back 

 and sides, imbricate; tongue thick, short, convex, 

 slightly nicked; eyes diurnal, eyelids valvular, pupil 

 round ; feet for walking, toes unequal, compressed ; 

 tail with more or less distinct whorls of scales. 

 25. Family. — Iguanas (Iguanidse). Body com- 

 pressed, sub-trigonal, or depressed; toes sim- 

 ple or dilated; teeth round at root, dilated 

 and compressed at tip, toothed on the edge, 

 placed along inner side of jaws, just below 

 the edge. 



