. Catalogue of the chelonians, rhynchocephalians, and crocodiles in the British Museum (Natural History). New ed. By George Albert Boulenger. Chelonia (Genus); Crocodiles; Rhynchocephalia. CHELYDRID^, 19 The following figure refers to the terminology of the epidermal shields of the shell. Fig. 2. JL ^-Z!i. A. Carapace. a. Abdominal. an. Anal. c. Costal. /. Femoral. (). Gular. Chelone my das. h. Humeral. ig. Intei-gular. im. Infrainarginal. ni. Marginal. B. Plastron. n. Nuclial. p. Pectoral. sc. Supracauclal. r. Vertebral. Fam. 2. CHELYDRID^. Emydidse, part., Grcnj, Ann. Phil. (2) x. 1825. Emyd
. Catalogue of the chelonians, rhynchocephalians, and crocodiles in the British Museum (Natural History). New ed. By George Albert Boulenger. Chelonia (Genus); Crocodiles; Rhynchocephalia. CHELYDRID^, 19 The following figure refers to the terminology of the epidermal shields of the shell. Fig. 2. JL ^-Z!i. A. Carapace. a. Abdominal. an. Anal. c. Costal. /. Femoral. (). Gular. Chelone my das. h. Humeral. ig. Intei-gular. im. Infrainarginal. ni. Marginal. B. Plastron. n. Nuclial. p. Pectoral. sc. Supracauclal. r. Vertebral. Fam. 2. CHELYDRID^. Emydidse, part., Grcnj, Ann. Phil. (2) x. 1825. Emydidee, part., Bell, Zool. Journ. iii. 1828. Steganopodes, part., WagUr, Syst. Amph. 1830. Emydse, part., Gray, Syn. Rept. 1831. Elodites Crj-ptoderes, part., Dunietil Sf Bibron, Erp. Gen. ii. 1835. Emydidse, part., Gray, Cat. Tort. 1844, and Sk. Rept. i. 18oo. Chelydroidae, Agassiz, Contr. X. H. U. S. i. 1857. Chersemyda, part., Strauch, Chelon. Stud. 1862. Chelydridse, part., Gray, Suppl. Cat. Sh. Rept. i. 1870. Chelydrinae, part., Cope, Proc. Ac. Philad. 1872, p. 22. Chelydridse, Cope, Proc, Am. Philos. Sac. xx. 1882, p. 144. Nuchal plate with long costiform processes, underlying the mar- ginals. Plastral bones nine. Shell covered with epidermal shields. Caudal vertebrae mostly opisthocoelous. Neck completely retractile. 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 British Museum (Natural History). Dept. of Zoology; Boulenger, George Albert, 1858-1937. London Printed by order of the Trustees
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