ORDER SAURIA. 151 



Their claws, however, five in number, are retrac- 

 tile. 



Some have the tail round, the toes striated under- 

 neath, and indented at the edges. 



These are 



The Stenodactyli. 



There is one in Egypt, the Sten. Guttatuis, Egypt. 

 Rept. pi. V. f. 2.* Smooth, grey, and sown with 

 white spots. 



Others have the toes slender and naked. Those 

 which have the tail round are 



The Gymnodactyli of Spix. 



There are some in America, with regular series of 

 little tubercles. Gymnodactylus Geckoides, Spix, X. 

 xiii. 1, appears to be one of them. 



Others have the tail flatted horizontally in the 

 form of a leaf. I name them 



Phyllurus. 



But one species is known, which belongs to New 

 Holland, (Stellio Phyllurus, Schn., Lacerta Platura, 

 White, New South Wales, p. 246, £ % where it is 

 referred without any sufficient reason to the Siel- 

 liones of Daudin,) gi'ey, marbled with brown above, 

 all bristling with small and pointed tubercles. 

 We are obliged to establish a fifth family of 



' Under tlie improper name of Agamc Ponelm''. It is produced again 

 tSnppl. pi i f. 2, and an approximating species, f. 4. 



