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Show 1870.] DR. J. MURIE ON SAIGA TARTARICA. 489 ductus communis choledochus are both narrow, and together over 3 inches long. The latter opens slit-wise into the duodenum, 7 inches (Pallas notes 10) distant from the pyloric orifice. The pancreas and mesenteric glands present nothing worthy of notice. 4. The Mouth and Organs of Deglutition. In the ' Spicilegia' quoted, the hairy upper lip, premaxillary pad, conical papillary fuscous buccal region, and livid tongue are briefly mentioned. I may add, however, a few remarks. There are a dozen forwardly convex linear and fringed transverse palatal elevations ; behind these the surface is smooth and somewhat concave from the second molar backwards. The dark coloration of the tongue is limited to its anterior half or that portion capable of being extended ; the posterior moiety, on the contrary is very pale-coloured. In the male the gustatory organ was 6 inches long, and within a trifle of 1| inch broad at root. In general appearance it is uncommonly like that of a Sheep, much more so than to an Antilope's tongue. The root is thick and convex, tbe middle considerably narrower; and forwards from this it by degrees widens into a broad flat spatulate extremity. The tip is slightly notched in the median line; and from this a shallow furrow runs back for 1^ inch. Below there is also a very shallow medial furrow \ inch in length. From the fraenum linguae the tongue is free for lk inch. Between the tip'and the anterior portion of the dorsum the surface is comparatively smooth, the filiform papillae being very short, close, adpressed, and towards the posterior portion retroverted. Each lateral margin of the dark portion of the tongue, and an arch | an inch deep underneath the tip, are beset with punctiform flat-topped papillae fungiformes. The conical papillae on the white convex dorsum are of moderate size, and, as in the Sheep, form a longitudinal ellipse. The papillae circumvallatae are few in number, of small size, and sparsely scattered in parallel longitudinal rows on the external surface of each side of the dorsum and root. The Saiga being a delicate feeder, choosing, like the Goat, aromatic herbs, may account, physiologically, for vast numbers of gustatory papillae found at the sides and under surface of the tip of the tongue. The velum pendulum palati is a thick and deep fold, narrowing considerably the passage into the pharynx. The arch above is dense and muscular ; but the free margin is much thinner and membranous. The two small follicular tonsillary glands are hidden within the pillars of the fauces ; and open into the palatine arch by a narrow orifice in front of the epiglottis. The mucous membrane around the fauces is smooth. The pharynx is a much wider cavity, and is abundantly supplied with submucous glands : its constrictor muscles have but moderate thickness. Of the glands conveying their secretions by ducts into the mouth, |