Jávorka Sándor - Soós Lajos (szerk.): A Magyar Természettudományi Múzeum évkönyve 29. (Budapest 1935)

Fejérváry, G. J.: Further contributions to a monograph of the Megalanidae and fossil Varanidae - with notes on recent Varanians

dorsal vertebra, i. e. to its belonging to the series immediately fol­lowing upon the cervicals; owing to lack of material numeric identi­fication inexécutable. Centre very massive, short and broad, gradually tapering towards the ball. Greatest width of ball but somewhat less than greatest width of shaft. Shaft, in the whole, deeply hollowed, subhemispheric, its dorsal edge is damaged severely enough, so as to prevent the estab­lishment of the morphological details concerned. Ventral edge not complete either, though much better preserved; not sharp, rather rounded, but moderately protruding, only laterally somewhat to­rons. The shaft is about 1.4 times as broad as long (breadth and length reckoned in accordance with the natural orientation of the vertebra as afforded by the conventional morphological estimation of the Vertebrate organism). Depth of shaft, measured from the middle of its (damaged) upper margin to the deepest point of the concavity, about 2.5 times contained in its horizontal diameter, i. e. in its greatest width referred to above. Lateral parts of lower edge rather acutely bending upwards, so as to meet the upper edge (as it appears in its damaged state) in a visibly protruding point forming an angle of about J 15". The broken surface shows a pretty high degree of mineralization, also proved by the considerable weight (655 g.) of the specimen. The spongiosa becomes clearly visible, espe­cially on a larger fracture present on the left side, on the limit be­tween centre and neural arch, and, so far as structural details may be revealed on ground of macroscopical inspection, a slight indica­tion of pachyostotis's having set in appears to be ascertainable. The ventral surface (Text fig. I) 60 of the centre is smooth enough, presenting a faint sculpture only, which consists in medially converging fine structure furrows implied by the genesis of the bone. No margo inferior centri vertebrae (FEJÉRV., 1918), and no sul­cus medianu s centri vertebrae (FEJÉRV., 1918, emend. FEJÉRV., nunc) either, the latter being, as a rule, characteristic, in Lacertilians, of caudal vertebrae only. Two vascular canals open, by foramina al­most symmetrically disposed, on the ventral surface of the centre, at a distance of 27.4 mm. from one another, and close enough (7.4 mm., on the less injured left side) to the medioposterior edge of the cup. These foramina that are to be found in the cervicals and dor­1,0 The text figures are made after drawings of M*Si T. SZÁLAI, after the death of the author, on directions of the editor.

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