CHAJOSLEO. 371 



thumb. The teeth form a row on each side, with seeming long gums ; 

 there are two tusk-teeth and three fore-teeth ; so far lik-3 many animals. 



The liver is a triangular body ; one angle points upward toward 

 the heart , another in the small curve of the stomach ; the third passes 

 down the right side along with the vena cava. The gall-bladder lies 

 in a hollow in the angle between these two last described lobes or 

 angles, and the ducts pass along the right edge of the second lobe to the 

 duodenum. The heart is as in the turtle: there is more than one 

 artery arising from the heart. 



There are two lumps of fat in the lower and lateral parts of the 

 abdomen, as in the lizard. Two penises. Two oviducts. The tongue 

 is fleshy and thick, and has two small white bodies on the lower surface 

 of the tip, which makes it somewhat forked* but it is not thin and 

 forked like the lizard's. The opening of the trachea projects a little 

 forwards. 



[The Sheath- clawed Gecko, Thecadudylus levis, Cuv.] 



The lizard, commonly called the " Savage of the "Wood," has two 

 oviducts, the knver end of which are enlarged like the shell-forming 

 part of the oviduct in the hen. The ovaria appear to form but one 

 ovum at each time of impregnation, having always but one in each 

 oviduct; and having none in the ovarium ready to drop. {Vide Pre- 

 paration 1 .) Whether this lizard be viviparous or oviparous, I do not 

 know. 



The Chameleon \_Chamceleo vulgaris, and Ch. planiceps]. 



The chameleon is more of the toad than the lizard : it has the tongue 

 of the toad : it has the appendicula adiposa as in the toad. 



The tongue of the chameleon consists of four parts : first, a bony basis ; 

 second, a pulpy or bulbous part at the tip ; third and fourth, elongating 

 and contracting parts, both which run almost through the whole length. 

 The basis, or bony apparatus of the tongue, consists of an os hyoides 

 [basi- and cerato-hyals] and os linguae [glosso-hyal] somewhat similar 

 to that of the bird ; therefore there is nothing very remarkable in their 

 construction. The bulbous or thick part at the end of the true tongue, 

 is that part which is to manage the food when caught ; it is the operator 

 within the mouth ; besides which it is the pincher or catcher, from its 

 being formed at the end into two opposite points, similar to the 



1 [Hunt. Preps. Phys. Series, Nos. 3332, 3333. There is no trace of embryonic 

 development in the ova shown in these preparations.] 



2 b 2 



