NOTES FROM THE AUSTRALIAN MUSEUM. DESCRIPTION OF A NEW AUSTRALIAN FISH. By E. Pierson Ramsay, F.R.S.E. and J. Douglas-Ogilby, Assistant in Zoology, Australian Museum. Apogon roseigaster, sp. nov. B. vii. : D. 6 1/10: A. 2/9-10: V. 1/5: P. 12-13 : C. 17. Length of head 3 J, of caudal fin 4f, height of body 3 J in the total length. Eye — diameter 3g in length of head, f of a diameter from the end of snout, and 5 apart. Interorbitai space slightly convex : upper profile of head nearly flat with a con-spicuous median longitudinal ridge : maxilla reaches to beneath last fourth of orbit. Inner edge of preopercle crenulated on both limbs, and with a few small serrations at the angle : outer edge of preopercle, and preorbital, entire. Teeth — villiform on jaws and vomer. Fins — dorsal spines weak, the third the highest about § of the length of the head ; soft dorsal much higher. Anal commences behind the origin of the soft dorsal, and like it is pro-vided with a scaly sheath at the base. The ventral fins are half the length of the head and much shorter than the pectorals. Caudal slightly rounded. Scales — very deciduous. Airbladder — lar<*e, truncate in front, each angle bearing a short lobe. Peritoneum and a lobe on either side of tongue, black. Colors — pale yellowish, with the lower parts roseate, this colour divided posteriorly into two gradually decreasing lobes by the anal fin, out not extending to the caudal ; upper half of spinous dorsal black : soft dorsal and anal pale red with a longitudinal black band about half way up ; other fins immaculate.
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