The roughness runs forward on the chine or ventral line, until it passes gradually into the ordinary scales of the head. The dewlap is very slightly extensible, and but little developed. It is supported by six thread-like rays, which are all divided to the base. A black band crosses the forehead from eye to eye. The upper half of the eye is bordered with black. The first dorsal exclusive of its last ray is of the same hue; a black band descends from it, and two from the second dorsal, which meet in a stripe that extends from the eye to the tail, the whole bearing some resemblance to the traces of a coach-horse. There is also a black mark on the upper surface of the tail, and a minute brownish speck on each scale, which specks form very faint rows on the cheeks and belly. The ground tint is pale or whitish, with some duskiness on the face, as if it had been coloured when recent. Length, 2 1/4 inches. Height of body, 1 1/8 inch. HABITAT. The western coasts of Australia. ... Cristiceps axillaris. RICHARDSON. CH. SPEC. C. pinnis intaminatis; macula argentata post os maxillare, altera in summa gena pone oculum et tertia majori in axilla pectorali; linea laterali argenteo-punctata. RADII. B.6; D. 3 : --28 : 7; A. 2 : 25; C. 11; P. 11; V.1 : 2. FISHES. PLATE 1. Figures 1, 2, 3. This singularly delicate and clear-looking fish has, after long immersion in spirits, a pale flesh colour, with transparent and spotless fins. A bright silvery streak descends from the angle of the preorbitar to the corner of the mouth, where it dilates a little. A speck of the same colour exists within the upper limb of the preoperculum, and immediately behind the pectoral fin there is a large oblong one. The little tubes forming the lateral line are also silvery. It is with much doubt that I name this species as distinct from the C. australis of the Histoire des Poissons, but there some points in M. Valenciennes' description of that fish which I cannot reconcile with the specimen now under consideration. And first, with respect to scales, M. Valenciennes states that he could detect none in australis, but in axillaris there are minute round scales, lying rather wide of each other, each having central umbo and lines radiating from it to the circumference. These scales are not easily seen while the skin continues moist, but become apparent as it dries, and are most numerous towards the tail. The head of axillaris is scaleless, and a row of pores runs along the lower jaw, up the preoperculum, and along the temporal groove. The eye is also encircled by similar pores. The muscular fibres shine through the delicate skin as in australis, and the teeth on the jaws and vomer appear to be similar. On comparing the specimen of axillaris with the figure of australis in the Histoire des Poissons, the second dorsal does not appear undulated as in the latter, but the spinous rays increase gradually in height from the first, and the anterior dorsal