ORDER SAURIA. l6l 



phalanges. One of the lungs is one half less than 

 the other. It lives in mud.* 



Others have not this range of pores. There is a 

 small species of the Cape described long since (An- 

 guis JBipeSf Lin. Lacerta Bipes, Gm. Seb. I. Ixxxvi. 

 3), whose feet terminate each in two unequal toes.t 



Brazil produces another. {Pygophus Cariococca.) 

 Spix, xxviii. 2, larger, with undivided feet, like those 

 of the lepidopode, but more pointed, with scales all 

 smooth. It is greenish, with four longitudinal 

 blackish lines. t 



Chalcides, Daud. 



Are like the seps, very elongated lizards, and similar 

 to serpents, but their scales, instead of being disposed 

 like tiles, are rectangular, and form like those of the 

 tail in the common lizards, transverse bands, which 

 do not encroach one upon the other. 



Some have a furrow on each side of the trunk, 

 and the tympanum very apparent. They are related 

 to cordylus, as the seps are to the skinks, and con- 



* The figure of Lacepede is taken from an individual whose tail had 

 been broken and reproduced. In general, in all this class, an observer is 

 very likely to be deceived, as to the proportional length of the tails. 



f This is the genus Bipes, Merr,, or Scelotes of Fitzinger. The Seps 

 Gronovien, or Monodacti/le of Daudin, of which Merrem has made his sub- 

 genus Pygodactylus, is but a badly preserved individual of the other; 

 another genus ought to be suppressed, as Merrem himself suspected. The 

 Seps Sexlineata, Harlan. Sc. Nat. Phil. IV. pi. xviii. f. 2, is only a 

 variety. 



X The Pyg. SLriatus, Spix, xxviii. 1, appears to me to be only the 

 young. 



VOL. IX. M 



