. Catalogue of the chelonians, rhynchocephalians, and crocodiles in the British museum (Natural history). Chelonia (Genus); Rhynchocephalia; Crocodiles. Skull of Stai/rofi/pHS salvinii. (From Gray, P. Z. S. 1869.) The two species agree in the following characters :—Vertebral shields not broader than long, not two thirds the width of the costals; an emargination in the posterior border of each of the vertebral and costal shields, corresponding to the three keels which run along the carapace. Head extremely large; a large horny shield covers the upper jaw, another the mandible, and a third the u


. Catalogue of the chelonians, rhynchocephalians, and crocodiles in the British museum (Natural history). Chelonia (Genus); Rhynchocephalia; Crocodiles. Skull of Stai/rofi/pHS salvinii. (From Gray, P. Z. S. 1869.) The two species agree in the following characters :—Vertebral shields not broader than long, not two thirds the width of the costals; an emargination in the posterior border of each of the vertebral and costal shields, corresponding to the three keels which run along the carapace. Head extremely large; a large horny shield covers the upper jaw, another the mandible, and a third the upper surface of the snout; soft parts with small warts ; tympanum indistinct under the thick skin. Wrist and heel with curved band- like lamelloe. Male with a patch of small horny, sharp-edged tubercles on the lower surface of the leg and another under the thigh. Tail with more or less distinct small conical tubercles, forming paired longitudinal series. In *5. salvinii the neural plates are seven in number, about as broad as long ; the last is separated from the pygal by the seventh pair of costals; the eighth pair of costals is separated by the pygal, which is either single or divided into a small anterior and a large posterior plate. The hyoplastral bones have a greater share in the formation of the bridge than the 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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Keywords: ., bookcentury1800, bookdecade1880, booksubjectcheloniagenus, bookye