. Catalogue of the fossil Reptilia and Amphibia in the British Museum (Natural history) ... By Richard Lydekker ... Reptiles, Fossil; Amphibians, Fossil. TELEOSAURID^S. 95 The generic reference of the following specimen is provisional. 40428. The centrum and part of the arch of a large dorsal vertebra; from the Neocomian of Potton (derived). Purchased, 1867. Genus METRIORHYNCHUS, Meyer1. Syn. Cricosaurus, Wagner2. (?) Gnathosaurus, Meyer3. (?) Rhacheosaurus, Meyer 4. (?) Crocodilcemus, Jourdan5. The skull (fig. 14) generally longer and more slender than in Dacosaurus, with a slight premaxillar
. Catalogue of the fossil Reptilia and Amphibia in the British Museum (Natural history) ... By Richard Lydekker ... Reptiles, Fossil; Amphibians, Fossil. TELEOSAURID^S. 95 The generic reference of the following specimen is provisional. 40428. The centrum and part of the arch of a large dorsal vertebra; from the Neocomian of Potton (derived). Purchased, 1867. Genus METRIORHYNCHUS, Meyer1. Syn. Cricosaurus, Wagner2. (?) Gnathosaurus, Meyer3. (?) Rhacheosaurus, Meyer 4. (?) Crocodilcemus, Jourdan5. The skull (fig. 14) generally longer and more slender than in Dacosaurus, with a slight premaxillary expansion, and with sculpture ; splenial part of mandibular symphysis forming a narrow elongated triangle; palatal aspect of anterior part of maxillae and mandible channelled ; teeth usually more numerous, slender, slightly curved, carinated, and frequently with the enamel fluted. Pig. Metriorhynchus kastifer, Deslongchamps.—The cranium; from the Kimeridge Clay of Normandy, f. pmx, premaxilla; mx, maxilla; na, nasal; la, lachrymal; fr, frontal; or, orbit. {After Deslongchamps.) This genus has been the subject of great confusion owing to the false restoration of the original Honfleur skulls, and its real defi- nition must date from the description of Deslongchamps. Crico- saurus, of the Solenhofen Limestones, presents all the characters of 1 Paheologica, p. 106 (1832). For application, see page 91, note 2. 2 Abh. Ak. Wiss. vol. viii. p. 417 (1860). 3 Museum Senckenburg, vol. i. p. 3 (1834). 4 Nova Acta Ac. Caes. vol. x. pt. 2, p. 173 (1831). 5 Quoted in Deslongchamps' 'Notes Paleontologiques,' p. 119 (1867).. 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 Geology; Lydekker, Richard, 1849-1915. London, Printed by order of the Trustees
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