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Show 72 PROF. FLOWER ON ICTICYON VENATICUS. [Feb. 17, The length of the animal, from the tip of the nose to the end of the tail, was 25*- inches, of which the head measured 5| inches, the neck and trunk 15-J, and the tail 4\ inches. There are four pairs of mammae, situated nearly equidistant on the ventral surface: the anterior pair over the ribs, nearly 2 inches behind the elbows ; the second pair on the abdomen, slightly in front of the umbilicus ; the third pair opposite the knee-joint; the last pair 2 inches in front of the vulva. The relative length of the toes and form of the palmar and plantar pads can be best understood by a reference to the accompanying figures (figs. 1 and 2). Fig. 1. Under surface of right fore foot of Icticyon ; natural size. Fig. 2. Under surface of right hind foot of Icticyon; natural size. The tongue has a well-developed lytta and four small circumvallate papillae on each side. The stomach, as in the Dog, consists of a subglobular cardiac portion and a narrower pyloric portion, separated by a constriction. The small intestine measured 46 inches in length, and the large 10 inches. The only difference which the alimentary canal presents from the usual canine type is in the caecum (fig. 3), which is very small, |