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Show 70 PROF. FLOWER ON ICTICYON VENATICUS. [Feb. 17, than in any other specimen I have examined, so much so that portions of its irregular edge can be seen in a side view of the cranium projecting into the deep notch formed between the nasals and the maxillae. This gives a semi-tichoilune appearance to the skull, but is probably only a consequence of age. " The hair which remains upon the skin of the upper part of the face is perfectly black. " The horns are extremely small, which indicates the probability of the animal having been of the female sex. They also appear to have undergone degeneration from age and wear, as it is extremely probable that in old or debilitated animals the formative process of the corneous material becomes impaired, and does not keep pace with the terminal decay and abrasion. The base of the anterior horn measures 4 inches from before backwards and 2f transversely. Its upper surface has a rugged honeycombed appearance, except in the middle, from which a more solid process, of a subconical and slightly recurved form, projects, but which only attains an elevation of 2\ inches above the surface of the skin. The posterior horn is an extremely irregular, flattened, nearly circular nodule, averaging 1| inch in diameter and scarcely 1 inch in elevation." The following papers were read :- 1. On the Bush-Dog (Icticyon venaticus, Lund). By WILLIAM H E N R Y FLOWER, LL.D., F.R.S., P.Z.S. [Received February 3, 1880.] (Plate X.) The death, on the 12th of December last, of the Bush-Dog from British Guiana, which was presented to the Society by Mr. Ernest Tinne on the 20th of August, 1879, has enabled me to place on record some notes on the anatomy of this somewhat aberrant member of the canine family, the viscera of which have not hitherto been examined. The first notice we have of this animal is by Lund, who described it under the name of Cynogale venatica1. Afterwards a more full description with osteological details and figures of the animal and skull were given by the same author ; and the generic name first imposed, having been already used by Gray for one of the Viverrida-}, was changed to Icticyon2. ' A n extinct species from the Brazilian caves, Icticyon major, was also doubtfully referred to the same genus. In the 'Annals and Magazine of Natural History,' vol. xvii. p. 293 (1846), Dr. Gray, unaware of Lund's memoir, described a specimen 1 P. W. Lund, "Blik paa Brasiliens Dyreverden for sidste Jordomvajltning. 4de Afhandliug." Kong. Danske Videnskab. Selskabs, nat. og math. At'hand-liuger, ix. Deel (Kjobenhavn, 1842), p. 201. s Ibid. 5te Aihandling, XI. Deel (1845), p. 62, Taf. xii. & xliii. |