. Comparative anatomy and physiology. 338 COMPARATIVE ANATOMY AND PHYSIOLOGY. united by a symphysial suture, but are only con- nected by an elastic ligament. Thanks to this dis- position of the separate parts in front and behind, the cavity of the mouth is capable of very considerable enlargement. In the venomous snakes the arrangements are. Fig. 142.—Skull of Crotalus. pmp, Premaxilla; TAX, maxilla; La, lachrymal; p/, palatine; pj, pterygoid; QM, quadrate; M», lower jaw. (After Huxley.) even more elaborate; the maxilla, instead of being elongated backwards, is shortened antero-posteriorly, so
. Comparative anatomy and physiology. 338 COMPARATIVE ANATOMY AND PHYSIOLOGY. united by a symphysial suture, but are only con- nected by an elastic ligament. Thanks to this dis- position of the separate parts in front and behind, the cavity of the mouth is capable of very considerable enlargement. In the venomous snakes the arrangements are. Fig. 142.—Skull of Crotalus. pmp, Premaxilla; TAX, maxilla; La, lachrymal; p/, palatine; pj, pterygoid; QM, quadrate; M», lower jaw. (After Huxley.) even more elaborate; the maxilla, instead of being elongated backwards, is shortened antero-posteriorly, so that its longer axis is directed downwards; it carries one long tooth, the " poison fang," and is excavated on its upper outer surface, where there lies the duct of the poison gland ; the maxilla moves freely oil the lachrymal, which again can move cii the frontal. The palato-pterygoid bar (Fig. 142 ; pi, Pt) is jointed, and the pterygoid is further connected with. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bell, F. J. (Francis Jeffrey), 1855-1924. London, Cassell
Size: 1786px × 1400px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookpublisherlondo, bookyear1885
