On the bush-dog (Icticyon venaticus, Lund.) / by William Henry Flower.

  • William Henry Flower
Date:
1880
Catalogue details

Licence: Public Domain Mark

Credit: On the bush-dog (Icticyon venaticus, Lund.) / by William Henry Flower. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

    5/10 (page 73)
    1880.] 73 only one inch and a half in length, slightly curved, and with a conical apex. 1 his adds another to the list, given in the notice of the caecum ot the Red Wolt of Canidae with small simple caeca The liver (figs. 4 and 5) only differs from that of a small Terrier Do«.= jn a slight variation in the relative size of the lobes, perhaps not greater than would be met with in comparing this organ in a scries of individuals of the same species. The anal glands are large, oval, thin-walled sacs, with a muscular covering and smooth lining membrane, each -9 inch in length and Ctecum of Icticyon; natural size. '7 inch wide, and opening by a single orifice, large enough to admit a bristle, at the lateral margin of the anal aperture. The brain (figs. 6 and 7, p. 75) is characteristically canine, except that, on the left side, the gyrus immediately surrounding the Sylvian fissure (fig. fi i', i') is not marked off by a complete sulcus at its upper curved part from the one above it, and therefore almost reproduces the condition met with in the Felidae, from which form, according to the view of the late Professor Garrod, the canine brain has been derived by complete division of the lower or external gyrus into an outer and inner segment3. Although I have no doubt, after examining a larger number of specimens than were available when attempting a classification and comparison of the cerebral convolutions of the 1 See P. Z. 8. 1879, p. 706. 2 See “Lectures on the Comparative Anatomy of the Organs of Digestion in the Mammalia,” ‘ Medical Times and Gazette,’ June 1,1872, p. 622, fig. 23. 3 “Notes on the Yisceral Anatomy of Lycaon p ictus and oi ' Nyctereutes pro- oyonidcs,” P. Z. S. 1878, p. 377. f5.]