| OCR Text |
Show 164 PROF. W. H. FLOWER ON THE MUSK-DEER. [Mar. 16, where the other papillae are becoming few and small, is on each side a longitudinal row of five rather small circumvallate papillae, not quite symmetrically disposed and slightly converging posteriorly*. The tongue is attached in front, f inch behind the incisor teeth, by a soft broad fold of membrane without any distinct fraenum. The parotid gland is large and straggling, composed of loosely connected acini. It extends from tbe angle of the jaw, lg inch backwards and upwards to the top of the neck behind the ear, a small slender branch projecting forwards and upwards in front of the cartilaginous meatus. The duct leaves the most inferior part of the gland below the angle of the jaw, passes upwards obliquely across the horizontal ramus with the facial artery and vein one inch in front of the angle, and at first following the anterior border of the masseter muscle, then running forwards, enters the mouth quite at the upper part of the cheek opposite the third premolar tooth. An oval patch of buccal glands, nearly an inch from before backwards, is situated in the cheek, around and chiefly below the entrance of the parotid duct. The submaxillary gland lies immediately below tbe parotid. It is also very large and with large acini, but of more compact form, being triangular, the shortest side or base of the triangle (1"*3 long) being turned backwards and lying against (for its upper half) the transverse process of the atlas. The apex (distant 2 inches from the middle of the base) lies beneath the horizontal ramus of the jaw. The upper border is in contact with the digastric muscle, the lower border with the sterno-hyoid. The gland lies immediately upon the larynx, with the sterno-thyroid, thyro-hyoid, and the constrictors of the pharynx. A small, detached, oval, glandular piece lay on the upper border of the posterior belly of tbe digastric muscle, on the right side only. The duct leaves the inner surface of the gland, | inch behind the apex, passes outside the central tendon of the digastric muscle (i. e. between it and the ramus of the jaw), then crosses beneath it and runs forward, surrounded by the long sublingual gland (3 inches in length), to open quite at the fore part of the floor of the mouth, beneath one of the before-mentioned papillae, | of an inch behind the incisor teeth. The tonsillar glands open by a pair of large distinct orifices, one in front of the other in the usual situation, without any elevation. The oesophagus is lined with very dense epithelium thrown into longitudinal rugae. The larynx did not appear to present any thing specially to distinguish it from that of other Deer. The epiglottis (fig. 3) is triangular, with a pointed apexf. * The arrangement of the circumvallate papilla** thus agrees with the Cervidce, and differs entirely from that of Tragulus and Hyomoschus (see P. Z. S. 1867, p. 955). The tongue of the Pudu is rather shorter and thicker than that of the Musk- Deer, and not so spatulate at the anterior extremity. The papillae are similarly arranged ; but the fungiform are more conspicuous, especially on the intermolar elevation ; and in the middle of the tongue, near the front, they are conical and recurved, though at the apex and sides perfectly circular in outline. t In the Pudu the epiglottis has a rounded free border. In the Wapiti it isbifid. |
