498 ZOOLOGY. . 
Fig. 441.—Anatomy of the common striped Snake. Hy, hyoidean apbaratues 
Tr. trachea; th, thyroid; Oe, oasophagus; 7, thymus; Ht, heart; Br, bronchus; 
L, lung; A, air-sac; Li, liver; Ov, ovary; G, gall-bladder; Pa, pancreas; Od, ovi- 
duet; Cl, cloaca; RF, rectum; Od’, right oviduct cut off; u, ureter; K, kidney; V, 
vena porte; J, intestine.—Drawn by C. 8. Minot. 
