Lower Surface of Frog Skull Small 320×286 Medium 640×573 Large 1024×916 Download Tiff Original 2400×2148 | (663.1 KB) Description "Skull of frog. Lower surface-- Pmx., premaxilla; M., maxilla; Q.j., quadrato-jugal; Q., quadrate; Pt., pterygoid; Ps., parasphenoid; P.O., pro-otic; Sp.E., sphenethmoid; Pl., palatine; V., vomer; c., columella." -Thomson, 1916 Keywords amphibian skull bones, frog skull, label frog head parts, lower surface of frog skull Galleries Amphibian Anatomy, Comparative Anatomy Source: J. Arthur Thomson, M.A., LL.D. Outlines of Zoology (New York, NY: D. Appleton & Company, 1916)
