Nova Guinea : résultats de l'expédition scientifique néerlandaise à la Nouvelle-Guinée en 1903[-1920] . è. Fig. 8. Carettochelys insculpta Spécimen of 455 mm. length; b. younger spécimen. young spécimens of différent length and adult ones. The largest has a length of the shellof 455 mm. Its carapace shows an obtuse keel on the posterior part (fig. 8a). A youngerspécimen has a rather sharp and strong dorsal keel over the whole of the carapace (fig. 8è).A young spécimen of 206 mm. length from Bivak Island 1912 is also strongly keeled andNova Guinea XIII. Zoologie. 20 150 KELLY DE ROOY.
Nova Guinea : résultats de l'expédition scientifique néerlandaise à la Nouvelle-Guinée en 1903[-1920] . è. Fig. 8. Carettochelys insculpta Spécimen of 455 mm. length; b. younger spécimen. young spécimens of différent length and adult ones. The largest has a length of the shellof 455 mm. Its carapace shows an obtuse keel on the posterior part (fig. 8a). A youngerspécimen has a rather sharp and strong dorsal keel over the whole of the carapace (fig. 8è).A young spécimen of 206 mm. length from Bivak Island 1912 is also strongly keeled andNova Guinea XIII. Zoologie. 20 150 KELLY DE ROOY. REPTILES. has on its margin two or three obtuse points, rests of the juvénile serration. A still smallerone of 94 mm. (fig. gb) is very distinctly serrated, the oval neural plates are clearly visible ;both characteristics are more strongly marked in the youngest spécimen of 55 mm. length (fig. ga).The head is large and broad, the snout ends in a fieshy thick proboscis, which isbent downwards, the nostrils are situated superiorly. The eyes are large and latéral; neck. Fig. 9. a. Kew-boin spécimen of 55 mm.: b. spécimen of 94 mm. short. Fore and hind limbs flat, webbed to the tips of the digits, two claws; fore limb longerthan hind limb, with 7—9 broad, transverse scales anteriorly and 3 or 4 enlarged scales atthe posterior margin. In the new-born spécimens the digits are distinctly visible. Tail short,with 14—16 curved shields above. The New Guinea turtle is found in the rivers of the south coast only, the fragment ofa costal plate, brought home from Lake the Dutch Expédition in 1903 to the northcoast was probably taken to that place by natives from the southern part. NELLY DE ROOY. REPTILES. 151 Fam. Trionychidae. 44. Pelochelys cantori Gray. Boulenger, Cat. Chel. 1889, p. 263. Siebexrock, Zool. Jahrb. Supplem. X 1909, p. 607. de Rooy, Indo-Austr. Rept. I 1915, p. 331, fig. 128. Lorentz River 1909, 1 young spec. Found between Bengal in the west
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