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Show 302 MR. 0 . TATE REGAN OX [Nov. 4, base of the dorsal, another on each side above the pectoral, and sometimes an obscure one at the base of the pectoral. Fins immaculate. Shanghai, Chusan, and Ningpo. Total length 280 mm. Tetrodon ocellatus is easily distinguished by its coloration, and by its much narrower ethmoid, fewer dorsal and anal rays (D. 14-15. A. 12-13), and by the spines extending forward only to between the eyes. The name fasciatus is preoccupied by Tetrodon fasciatus Bl. Schn., founded on a short description and obviously incorrect figure of Seba, and not since recognized. T etrodox b im acul a tu s Richardson. Body without distinct lateral fold. Nasal papilla moderately elevated, with 2 nostrils. Body nearly as broad as deep; the length of head nearly 3 times in the total length; length of snout about 2.; times in the length of head, its breadth less than twice, eye-diameter about 7 times, interorbital width 2| times, and about 3 times as wide as the ethmoid. Jaws subequal in height, without well-marked ridges at the sides of the median groove, and with slightly concave cutting-edges. Spines moderately strong, close-set, extending on the back from between the eyes nearly to the dorsal, and on the abdomen from below the level of the eyes to the vent; the snout, sides of head and body, and caudal peduncle naked. D. 13-14. A. 11-12, pointed, subequal in height, their longest ray nearly half the length of head. Caudal truncate. Greyish above, white below; 11 or 12 dark transverse stripes on the head and back before the dorsal, the posterior ones becoming horizontal and running back on the caudal peduncle. A blackish spot on each side covered by the upper part of the pectoral, and another on the base of the pectoral. Estuaries of Chinese rivers. Total length 140 mm. This species is quite distinct from the preceding, with which Richardson considered it to be identical; and from T. ocellatus it is easily separated by its colour and by its much broader snout and ethmoid. Richardson's figure (Zool. Sulphur, Fishes, pi. 57) is excellent. T etrodox pleurosticus Gunther. To the synonymy of this species should be added Tetrodon fasciatus Macleay, Proc. Linn. Soc. N.S.W. ii. 1878, p. 365, pi. x. The three dark spots on the sides described by Gunther terminate the quite distinct dark transverse bands on the back noted by Macleay, and the cross band between the eyes is also present. T etrodox f l u v ia t il is Ham. Buch. To the synonymy of this species should be added Tetrodon waandersii Bleeker, Nat. T. Ned. Ind. v. 1853, p. 194 (A rot hr on waandersii Blkr., Leiodon waandersii Blkr.). A comparison of |