. Catalogue of the chelonians, rhynchocephalians, and crocodiles in the British Museum (Natural History). New ed. By George Albert Boulenger. Chelonia (Genus); Crocodiles; Rhynchocephalia. 262 TRIONYCHJDiE, adult, with a callosity; each epiplastron likewise with a callosity, which is, however, very minute. Brown above, whitish inforiorly ; head without markings ; back blotched with darker brown. The length of the dorsal disk does not exceed 25 centim. Mississippi, Ohio, and Saint Lawrence. a. I]gi-., stfid., skull separate. ? * (Type of CalUnia microcephala.) 2. PELOCHELYS. Chitra, part., Gray
. Catalogue of the chelonians, rhynchocephalians, and crocodiles in the British Museum (Natural History). New ed. By George Albert Boulenger. Chelonia (Genus); Crocodiles; Rhynchocephalia. 262 TRIONYCHJDiE, adult, with a callosity; each epiplastron likewise with a callosity, which is, however, very minute. Brown above, whitish inforiorly ; head without markings ; back blotched with darker brown. The length of the dorsal disk does not exceed 25 centim. Mississippi, Ohio, and Saint Lawrence. a. I]gi-., stfid., skull separate. ? * (Type of CalUnia microcephala.) 2. PELOCHELYS. Chitra, part., Gray, Cat. Sh. liept. i. p. 70 (1855) 5 Giinth. Rept. Brit. Ind. p. 50 (18G4). Pelochelys, Gray, Proc. Zool. Soc. 1864, p. 89, and Suppl. Cat. Sh. Kept. i. p. 90 (1870), and Proc. Zool. Soc. 1873, p. 40. Outer extremities of the nuchal plate overlying the second dorsal rib; neural plates well developed. Limbs completely exposed. Hyoplastron distinct from hypoplastron ; not more than five plastral Fig. Skull of I'dochelys cantoris.^From Gray, P. Z. t> iCiGl.) callosities. Bony choanoe between the orbits; jaws weak; post- orbital arch as broad as the diameter of the orbit; pterygoids posterior border free, without ascending process. East Indies. * The specimen, stated to have been obtained by Mr. Wallace at Sarawak, was purchased at Stevens's 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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