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Show 134 MR. G. A. BOULENGER ON [Feb. 16, 2. Third Account of the Fishes obtained by Surgeon-Major A. S. G. Jayakar at Muscat, East Coast of Arabia1. By Or. A. BOULENGER. [Received January 19, 1892.] Two further collections received from Mr. Jayakar in 1891 enable m e to supplement the list of Muscat Fishes with the names of seventeen species, of which one (Hisliopterus typus) belongs to a genus previously unknown from the Indian Ocean. 1 TELEOSTEI. A C A N T H O P T E R Y G I I. PERCIDJE. 1. S E R R A N U S H O E V E N I I , Blkr. 2. HISTIOPTERUS TYPUS, Schleg. This fish is on record from Japan only ; but a fine specimen from Duke-of-York Island is preserved in the British Museum. The genus Histiopterus is an important addition to the fauna of the Indian Ocean, and it seems surprising that so striking a form should have hitherto escaped notice on the coasts of India and Ceylon, where it will no doubt be eventually found. SPARID^E. 3. B o x L I N E A T U S , sp.n. D. g. A. J. L. lat. 70. L. tr. £. Length of head a little more than one fourth of the total (without caudal) ; diameter of the eye a little greater than the length of the snout, two sevenths the length of the head. Pectoral three fourths the length of the head. Depth of the body thrice and one third in the total length (without caudal). Caudal deeply forked. Upper half of body greyish olive, lower half yellow; four rather indistinct dark lines along each side of the body, the uppermost running along the lateral line ; a black spot in the upper axillar portion of the pectoral. Total length 250 millim. A single specimen. This species is very nearly related to the Atlantic and Mediterranean Box vulgaris, from which it differs in the deeper body, the somewhat larger scales, and the slightly different number of rays. The fin-formula and the axillar spot differentiate it from Cuvier and Valenciennes's B. salpoides, stated to be from the Indian Ocean. 4. PlMELEPTERUS FUSCUS, C. & V. 1 Cf. P. Z. S. 1889, pp. 236-246. |