Catalogue of the Chelonians, Rhynchocephalians, and Crocodiles in the British Museum (Natural History)

Catalogue of the Chelonians, Rhynchocephalians, and Crocodiles in the British Museum (Natural History)

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1889 edition. Excerpt: ...into two by a median suture; beak feebly hooked; edge of jaws denticulated; alveolar surface of upper jaw with a strong, tubercular, median ridge. Fore limb anteriorly with large, unequal-sized, roundish, juxtaposed or subimbricate scales, one of which, on the inner side near the elbow, is usually much enlarged; no conical tubercles on the back of the thighs. Carapace dark brown or black, each dorsal shield yellowish or orange in the centre; plastron brown and yellow, often yellow with a large median roundish dark brown area. Head and limbs with orange or red spots. Length of shell 55 centim. Tropical South America east of the Andes; Windward Islands. Shell considerably depressed, its depth not half its length; anterior and posterior margins reverted, more or less strongly serrated; nuchal present; supracaudal shields two; discal shields concentrically striated, often concave; vertebrals much broader than long and at least as bread as costals. Plastron large, gular region somewhat produced and usually notched, hind lobe deeply notched; the pectoral shields may be widely separated from each other, or from a short median suture; axillary shield very small, inguinal large. Head moderate; two large praefrontal shields and a large frontal; beak not hooked; jaws feebly denticulated, the alveolar surface of the upper jaw with a strong median ridge. Fore limb anteriorly with very large, bony, pointed, imbricate tubercles, forming four or five longitudinal series; hind limb with very large bony tubercles on the plantar surface, and larger, conical, spur-like ones on the heel, and a group of still larger, conical ones on each side on the back of the thighs. Adult dark brown or blackish; carapace of young yellowish brown, with dark-brown more

Product details

  • Paperback | 80 pages
  • 189 x 246 x 4mm | 159g
  • United States
  • English
  • black & white illustrations
  • 1236859014
  • 9781236859013