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Show 58 DR. J. ROUX ON THE TOADS [Jail. 16, theirs may point to its not lying on quite the same line of descent. Though I would not attach too much importance to it, I would again call attention to the fact already mentioned, that in Carnivora, and still more so in Insectivora, rudiments of a penetration of the enamel by dentinal tubes occur with more frequency than in other mammals. This may possibly indicate some remote connection with the Marsupials, but the point which I wish to emphasise is that, as regards this character, the Creodonts carry us absolutely no further than do the recent Carnivora. BIBLIOGRAPHY. (1) FILHOL.-" Mammiferes fossiles des Phosphorites." Annal. Sc. Geolog. viii., 1877. (2) M A T T H E W , W . D.-" Additional Observations on the Creo-donta." Bulletin of American Museum Nat. History, 1901. (3) LYDEKKER, R.-Art. " Mammalia," Encyclop. Britannica, vol. xxx., 1902. Also Proc. Zool. Soc, 1899. (4) W O R T M A N . - " Studies on Eocene Mammalia." American Journal of Science, vols, xii., xiii., & xiv., 1901-3. (5) TOMES, J.-" On the Dental Tissues of Rodentia." Philos. Trans., 1849. (6) TOMES, J.-" On the Dental Tissues of Marsupialia." Philos. Trans., 1850. (7) TOMES, C. S.-" On the Teeth of the Gadida?." Quart. Journ. Micr. Sc, 1899. (8) TOMES, C. S.-" On the Development of Marsupial and other Enamels." Philos. Trans., B. 1898. (9) TOMES, C. 8.-" On the Structure of the Teeth of Notoryctes." Proc Zool. Soc, 1897. 4. Synopsis of the Toads of the Genus Nectophryne B. & P., with special Remarks on some known Species and Description of a new Species from German East Africa. By Dr. J E A N R O U X , Curator in the Basle Museum of Natural History. [Received December 11, 1905.J (Plate II.*) On visiting, last spring, the beautiful collections of the of Paris and London, I had occasion to examine, especially in the British Museum, most of the typical specimens of the known species of the genus Nectophryne. Whilst verifying the diagnoses, I was able to make some observations modifying or completing # For explanation of the Plate, see p. 65. |