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Show 666 DR. A. GUNTHER ON NEW FISHES [Nov. 21, than the fourth. No orbital rim. Skin entirely smooth, without tubercles or tentacles. Four ocellated spots, about as large as the eye, and the anterior equidistant from each other, along the upper half of the body. Fins indistinctly reticulated with brown, some of the reticulations being distinct rings. South Australia. MYXUS LEUCISCUS. (Plate LXV. fig. A.) -. A. ITJ. L. lat. 47. L. transv. 14. Teeth small, movable, bent, those of the upper jaw in a single series; a deep notch in the middle of the upper jaw to receive the mandibulary symphysis. Lower jaw with a similar series of horizontal teeth; other smaller teeth appear to be destined to replace those in function. Lower surface of the mandible without transverse folds. Palate apparently toothless. The maxillary does not quite extend to the front margin of the eye. Snout pointed and rather longer than the eye, which is one fourth of the length of the head, and only two thirds of the width of the interorbital space. The depth of the body is scarcely more than the length of the head, which is one fourth of the total length (without caudal). Pectoral extending to the commencement of the spinous dorsal, which corresponds to the fifteenth scale of the lateral line. Dorsal spines rather feeble, the first, which is the longest, being not quite half as long as the head. Caudal fin emarginate. Coloration uniform, back greenish. One specimen, 5| inches long (no. 273), from the Godeffroy Museum ; it was obtained at Rarotonga, Cook's Islands. CHILINUS GODEFFROYI. (Plate LXVI.) D. ^. A.:l L. lat. 21. The height of the body is nearly equal to the length of the head, and two fifths of the total (without caudal). Head longer than high ; snout compressed, rather pointed, its length being two fifths of that of the head. Chin not prominent. Scales on the cheek in two series, the lower of which is composed of three or four scales, aud does not extend on to the preeopercular limb. Caudal fin rounded. Tubules of the lateral line simple. Most of the scales with a well-defined deep-brown vertical streak ; two parallel brown lines across the preeorbital, two other similar lines behind, and one above, the eye. Vertical fins with brown reticulations; a white spot on the base of the last dorsal and anal rays. One specimen, 5| iuches long (uo. 440), from the Godeffroy Museum ; it is from the Tonga Islands. PLATYGLOSSUS NIGROMACULATUS. (Plate LXV. fig. B.) D. ~. A. ^. L. lat. 28. The height of the body is one third of the total length (without caudal), and a little more than the length of the head. Snout pointed, somewhat longer than the eye, which is two ninths of the |