Horváth Géza (szerk.): A Magyar Természettudományi Múzeum évkönyve 16. (Budapest 1918)
Fejérváry, G.J.: Contributions to a Monography on fossil Varanidae and on Megalanidae 16
FOSSIL VARANIDAE AND MEGALANIDAE. 375 Breadth of ball: 5-51. Median height of ball : 3-94. Greatest height of vertebra from talon** to tip of proc. spinosus*: 17-95. Length of proc. spinosus** from ant . opening of n e u r a 1 c a n a 1** : 12-4. Distance between hind tip of proc. spin, and hind tip of (right) proc. obi. post : 8*59. Distance between hind tip of proc. spin.* and upper hind border of neural canal: 6*8. Distance between foremost point of arch of (right) foram. interverteb. to tip of (right) proc. obi. post. :. 6*8. Meclian height of posterior opening pi neural canal: 4'9. Median breadth of post, opening of neural canal: 3"92. Median height of anterior opening of neural canal : 4*4. Median -breadth of anterior opening of neural canal: 4*7. Minimum breadth of neural-arch (middle region, before proc. obi. post.) : H*44. Habitat: La-Grive-St.-Alban (heve), France. 2. Varanus Hofmanni Boo. horn. inc. — Under Miocene. Varanu Hoj inanni, ROGER, Wirbelthierteste a. d. Dinotheriensande d, bay., schwäb. Hochgeb., II. Theil, Ber. Naturw. Ver. Schwaben u. Neuburg, Augsburg, 1898, p. 386-388, & ibid. 1900, p. 68, Tai. HI, Fig. 12-14; NOPCSA, Beitr. z. Kenntn. foss. Eid., BL-itr. z. Pa). u. Geol. Ost. Ung., Bd. XXI, Wien und Leipzig, 1908, p. 47. The morphology of this species which is clearly distinguishable from V. Cayluxi, could be examined only so far as the respective des crip ti ó n s and dra w in g s enabled me to do so, closer details must therefore be omitted. As regards V. Hofmanni'a connexion with V. Cayluxi, from the point of view of structural characteristics, exact differences can hardly be stated from the photographs at my disposition. Nor does DE STEFANO'S work contain any measurements in reference to V. Cayluxi either, from which the proportions of certain parts of the vertebra? might be estimated in view of establishing the precise value of morphological characters. It seems how T ever that Varanus Hof manni must have been somewhat larger, the anterior part of its dorsal vertebra? suddenly widening and when reaching the vicinity of the condyle becoming suddenly narrower, thus presenting on the whole, a cuneiform aspect ; the ball is b r o a d 1 y rounded and, correspondingly, the cup describes a wide ellipsis, whilst in V. Cayluxi the centre of the vertebra seems to contract already after
