Chordater

Title: Description des reptiles nouveaux ou imparfaitement connus de la collection du Muséum d'histoire naturelle et remarques sur la classification et les caractères des reptiles
Identifier: descriptiondesre00dum (find matches)
Year: 1852 (1850s)
Authors: Duméril, Auguste Henri André, 1812-1870
Subjects: Muséum national d\U+2019\histoire naturelle (France); Reptiles; Reptiles
Publisher: (Paris : Muséum d'histoire naturelle)
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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Text Appearing After Image:
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Title: Zoology of Egypt
Year: 1898 (1890s)
Authors: Anderson, John, 1833-1900 Boulenger, George Albert, 1858-1937. Fishes of the Nile De Winton, William Edward
Subjects: Zoology
Publisher: London, B. Quaritch
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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nitor griseus, Peters, Mon. Berl. Ak. 1870, p. 109. Varanus (Psammosaurus) arenarius, Bedr. Bull. Soc. Nat. Mosc. 1879, no. 3, p. 40.Varanus griseus, Blgr. Cat. Liz. B. M. ii. 1885, p. 306; Trans. Linn. Soc. Lond., Zool. v. 1889, p. 99; Fauna Brit. Ind., Rept. 1890, p. 163; Trans. Zool. Soc. xiii. 1891, p. 121; Boettger, Zool. Jahrb. iii. 1888, p. 904; Kat. Rept. Mus. Senck. 1893, p. 49; Anderson, Proc. Zool. Soc. 1895, p. 636 ; Herpet. Arabia & Egypt, 1896, pp. 34, 101; Zander, Zool. Garten, xxxvi. 1895, p. 298; Werner, Verh. zool.-bot. Ges. Wien, xliv. 1894, p. 79; Francaviglia, Boll. Soc. Rom. Zool. v. 1896, p. 46.1 $ . Suez. 1 cJ. Desert N.E. of Cairo.1 ? . Gizeh Desert.1 ? . Tel el Amarna. Prof. W. M. Flinders Petrie, D.C.L. 1 J1 and 1 juv. Suakin. Surgeon-Captain Penton, D.S.O. 2 £ and 2 ? . Suakin.1 J . Tokar. Teeth acute, compressed. Snout slightly depressed at the tip. Canthus rostralismoderately denned. Nostril oblique, rather large and crescentic, close to the eye, its
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w a Pi Zo ° < - Pi *° VAEANUS GEISBUS. 135 distance from the end of the snout being about four times greater than the intervalbetween it and the eye. Tail rounded at the base, slightly compressed posteriorly; nodorsal ridge. Digits rather short; claws strong and curved. Scales on the uppersurface of the head, including the supraoculars, very small, juxtaposed, smooth,generally hexagonal. Scales on the body and limbs small, rounded or oblong,sometimes feebly keeled, larger than ventrals, those on the sides of the neck generallyconical; ventrals smooth, 110-125 between the fold of the neck to the groin. Caudalscales small, more or less keeled above and below. General colour sandy yellow, with narrow brownish longitudinal lines varying inintensity along the side of the neck, and similarly coloured bands or lines across theback and tail, becoming lost in some adults towards the tip; the upper surface of thebody sometimes with yellow spots. The young is generally pale rufous yellow ab

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Tortoises, terrapins, and turtles London, Paris, and Frankfort :H. Sotheran, J. Baer & co.,1872.

198 PELOEATID^.
smooth, and the dermo-ossification, as it develops,
produces granular asperities which may become con-
fluent into alveolar ridges, producing a pitted appear-
ance. In very old specimens the sutures between the
nasals, the ethmoid, and the fronto-parietal may become
obliterated.
Vomers rather large, variable in shape, extending
or not to the palatines, which are strongly ossified.
On the palatal side the ethmoid extends posteriorly to
about the middle of the length of the parasphenoid.
Latter large, J_- shaped, its anterior pointed extremity
produced to between the palatines. Pterygoids not
reaching the palatines, extensively in contact with
the parasphenoid. Stapes absent.
Mento-Meckelian or symphysial bones distinct on
the inner side only.
Hyoid a large broad cartilaginous plate, with slender
postero-lateral processes

anterior processes much
expanded and confluent with the lateral wings, en-
closing a small fenestra; ceratohyal cornua with
short posterior portion detached from the body of
the hyoid

thyrohyals large, massive, in contact at
the base, diverging and more or less expanded poste-
riorly.
Vertebral column once and a half to twice as long
as the skull. Spine closed above, the neural arch
produced posteriorly into a strong median process
between the zygapophyses. Three anterior diapo-
physes strong and long, especially the second, which
bears a more or less distinct dorsal knob or process
as on the corresponding rib of Discoglossus^ — the first
directed obliquely forwards, the second and third
nearly horizontal; the following short and slender,
directed forwards. Sacral vertebra with very strongly
dilated diapophyses, the transverse diameter of which
is twice and a half to nearly three times in the axial

urostyle short, not longer than the sacral wings, and
fused with the sacrum, to the diapophyses of which
its anterior portion contributes if these processes

• Subject: Amphioxus, Cephalocordata
• Tag: Fish