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

rhomboideae. Close to the ventral end of these tori a small and narrow ridge is sent off on either side, ventrally delimiting the facies rhomboideae and following a slightly dorsad direction. — The articulation surface is narrow, elongate, leaf-shaped, with a few strongly marked and broad structure lines running parallel with its outlines. Distal end broadly rounded, proximal rather pointed, a moderate sinuation occurring on the posterior (caudad) edge, i. e. in the torus terminális, the sinuation reaching from about the middle region of the posterior edge to about 1 cm before the proximal point of the articulation surface: the sinuation mentioned, which is symmetrically present on both sides, seems to be original, i. e. not due to injury during fossil ization. Greatest breadth of articulation surface (measured on right side) 24.6 mm. The articulation surface is strongly oblique in proximalodistal sense, with a slight lateralorostrad-medialocaudad inclination of its plane: it meets the lateral surface of the neural arch in an angle of approximately 100°. the angle enclosed by the articulation surface and the dorsal surface, measured on /jthe side of the facies rhomboideae, counts about 63°, being somewhat more acute if viewed from the front side. The processus spinosus is severly injured. It is strongly developed, bilaterally much flattened, so as to be, especially in its rostrad part, actually compressed, sharply rising, though enclosing' at its anterior origin, on account of the very oblique dorsal surface of the neural arch, an angle of but 33° with the latter. Thus, in comparison to the dorsal surface of the neural arch, the spinous process appears to be but a little more prone than the superior vertebral plane which in turn, forms an angle of 38° with the rather plane ventral surface of the centre. As observed usually in the bilaterally much compressed type of proc. spinosus, the said process gains in antero-posterior dimension, the present one measuring 58.53 mm in (rostrado-caudad) length. Its height cannot be •established, for the distal part is wanting. A marked bilateral swelling beginning with a broad base and upwards gradually diminishing in bulk, a sort of obliterate torus, occurs on it, running parallel to its posterior edge, and forming a continuation of the postero-superior edge of the proc. obi. posteriores. This bilateral swelling gradually diminishes towards the subhorizontal posterior edge of the processus spinosus, which, however, is still about double as broad as the anterior edge, and follows its course downward, as far as the posterior dorsal vault of the spinal canal, thus constituting the strongly marked linea medialis arcus vertebrae which gradually