. Catalogue of the chelonians, rhynchocephalians, and crocodiles in the British Museum (Natural History). New ed. By George Albert Boulenger. Chelonia (Genus); Crocodiles; Rhynchocephalia. 6. CYCIiANOEBIS. 271 the costals meeting on the median line and separating the neurals from each other; eighth pair of costals large. Plastron with a Fig. skull of (Jydanorbis scneyulcadit. ^^Froui Gray, P. Z. S. 18tj4.) cutaneous femoral valve, under which the hind limb may be con- cealed ; hyoplastron coossified with hypoplastron; nine or more plastral callosities in the adult, a pair being present in
. Catalogue of the chelonians, rhynchocephalians, and crocodiles in the British Museum (Natural History). New ed. By George Albert Boulenger. Chelonia (Genus); Crocodiles; Rhynchocephalia. 6. CYCIiANOEBIS. 271 the costals meeting on the median line and separating the neurals from each other; eighth pair of costals large. Plastron with a Fig. skull of (Jydanorbis scneyulcadit. ^^Froui Gray, P. Z. S. 18tj4.) cutaneous femoral valve, under which the hind limb may be con- cealed ; hyoplastron coossified with hypoplastron; nine or more plastral callosities in the adult, a pair being present in front of, and ossifying independently from, the epiplastrals. Bony choanaj between the orbits; jaws strong; postorbital arch moderate, nar- rower than the diameter of the orbit; posterior border of pterygoids with a median ascending process forming a suture with the opis- thotic. Tropical Africa. 1. Cyclanorbis senegalensis. Cryptopus senegalensis, Dum. 8f Bibr. ii. p. 504 (1835). Emyda senegalensis, Gray, Cat. Tort. p. 47 (1844), a7id Sh. Rept. i. p. 64 (18o5). Cyclanorbis petersii, Gray, Proc. Zool. Soc. 1852, p. 135. Cyclanosteiis petersii, Gray, Proc. Zool. Soc. 1855, p. 201, and Cat, Sh. Rept. i. p. 64, pi. 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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