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

Mr. FILHOL did not even note whether this femur is represented in natural size or not ; if this were the case, and if my supposition — not statement — according to which the mentioned f e m u r was justly determined by FILHOL as that of V. Cayluxi, were to prove right, the size of this species would be equal to that of an at least full-grown specimen of V

. griseus (a smaller individual is figured on Textfig. 2) or a smaller individual of V. salvator LAUR. Regarding the vertebrae (Textfig. 3) I should like to observe that I am unable to share in Mr. DE STEFANOS opinion (op. cit. p. 411), according to which these appear to represent an intermediate state betFig. 3. ^Varanus Cayluxi FILH. a

=left profile of epistropheus, 3

/i nat- size; 6 = left profile of a dorsal vertebra, nat. size; e=lower view of a dorsal vertebia, 3

/j na

t- size; d=back view of a dorsal vertebra, nat. size ; e=fragment (nearly complete) of a right maxillary, nat. size ; /=lower view of sacral vertebrae, nat. size ; gr = tragmcnt of a dentary, nat. size. — Authors pendrawing e: after ZITTEL, op. cit. p. 609, Fig. 540, a—d & f—g: after DE STEFANO, op. cit. tav. X, fig. 8, 9, 6, 10, 3, 15. ween the M e g a la ni a n-type and the oblong one observable in V. bengalensis DAUD. On the contrary, the vertebra? of V. Cayluxi are of a typical Vara no id shape, whilst Megalania with its large, stout vertebra? bearing zygosphen and z y g a ntru m, and provided with a very narrow neural canal, belongs, according to my opinion, to a separate systematical unity, for which I establish the family Megalanidae. A careful examination of the original "remains, in view of establishing the genuine importance of characters and of verifying the accuracy of Annales Musci Nationalis Hungarici, XVI. 24