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Show 294 ON T H E FISHES O F T H E ARCTIC EXPEDITION. [Mar. 20, veloped as the largest, or even more so. The spines of the first dorsal fin are sometimes quite distinct, sometimes enveloped in loose skin. fl ' :t W W Cyclopterus spinosus. 4. LIPARIS FABRICII, Krbyer. Previously known from Spitzbergen, Greenland, Fort Leopold; is represented in the present collection by a specimen from Discovery Bay, and another from Franklin-Pierce Bay. 5. GYMNELIS VIRIDIS, Fabr. One specimen, obtained in lat. 81° 52'; it is only 5 inches long, and belongs to a highly coloured variety, being brown with numerous white spots, and having four black ocelli on the dorsal fin. 6. GADUS FABRICII, Rich. Widely distributed in the arctic regions of the western hemisphere. One specimen, obtained off Cape Hayes, Grinnell Land. 7- SALMO ARCTURUS, sp. n. (Plate XXXII.) The northernmost Salmonoid known at present. This Charr cannot be identified with any of the other races of this division of Salmo; it comes nearest to the Charr of Killin (Inverness- shire), but differs from it in having a more slender body, rather smaller scales, shorter fins, and a less number of pyloric appendages. Body rather elongate; head small, two ninths or nearly one fifth of the total length (without caudal), scarcely more than one half of the distance between the snout and the vertical from the origin of the dorsal fin. The snout is remarkably obtuse; the maxillary varies in length : in males of the same size it sometimes reaches scarcely to, sometimes a little behind, the hind margin of the orbit; in the female it is smaller and shorter. Teeth small; vomerine teeth limited to the anterior extremity of the bone; a band of villiform teeth along the middle of the hyoid bone. Praeoperculum with a distinct lower limb ; suboperculum about twice as long as deep ; pectoral but little shorter than the head, exceeding in length one half of the distance of its root from the ventral. Ventral terminating at a considerable distance from the vent. D. 13, the longest ray as long as the head (without snout). A. 12. Caudal moderately excised, its middle rays half the length of the outer ones. Scales minute. Branchiostegals 11. Upper parts of a dull brownish green, passing on the sides into the silvery or reddish colour of the lower parts. Dorsal and caudal |