AWATOMY OF THE LIZARD. 493 
Fig. 440.—Anatomy of a lizard, Sceleporus undulatus. t, trachea ; ¢, carotid artery; 
th, thyroid gland ; 2, ventricle of the heart—above are the two auricles; Ju, lung; 
2, liver turned out; s, stomach ; 2, intestine ; @, vent —above it the cloaca is laid 
open to disclose the openings (0 0) of the kidneys (&); above are the two openings of 
the oviducts; 7, oviduct; 0, ovary; v, vena cava; J, fat-body.—Drawn by A. F 
Gray from dissections made by the author. 
