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Show FISH. A second specimen slightly differs from the above, but is evidently referable to the same 11pecies. lt is smaller; and the profile falls more gradually. The caudal has only eight branched rays, with two lateral simple ones. The pectorals have the tenth and eleventh rays longest, with the seven lowermost (instead of six) stouter than the others and simple. The finray formula :is also different. D. 6-19-13; A. 25; C. 10, &c.; P. 17; V. 2. Length 2 inc. 1 line. The colours are paler, and more decidedly grey, with the darker motlings more distinct. The dorsals and caudal are pale, minutely dotted with brown. Tips of all the anal rays white. Habitat, Bay of Islands, New Zealand. This species approaches very closely the 1'. nigripenne of Cuvier and Valenciennes, of which it may possibly be a variety; but the description in the "Histoire des Poissons," as regards the form, is limited to a very few words. If the figure given by those authors be correct, the T. nigripenne differs decidedly in the first dorsal being more elevated, with the rays more unequal, and in the lateral line extending the whole length of the fish. In the present species the first dorsal is low and even, with the rays all equal, and the lateral line cannot be traced much beyond the pectoral ; and these characters are found in both specimens. Ther~ are also six rays in the first dorsal. According to the description, the 1'. nig1·ipenne has but five, though six are represented in the figure. From the T. varium, this species differs not only in its fin-ray formula, but in its markings : and the same characters serve to separate it still more widely from '1'. Forsteri and T.fenest1·atum. This species was obtained by Mr. Darwin on tidal rocks in the Bay of Islands, New Zealand. Three out of the only four extra-european species described by Cuvier and Valenciennes come from the same locality. FAMILY.-GOBID.LE. 1. Gonrus LINEATUS. Jen. PLATE XIX. fig. 2. G. nigro-griseus, lineis circiter decem longitudinalibus nig1·is: capite lato, subdepresso; genis injlatis: maxillis cequalibus: dentibus velutinis, externis fortiorihus aruleiformibus ; caninis nullis: oculis amplis, intervallo vix plus qttatn semidiametru1n cequante: pinnis dorsalihus contiguis, altitudine subcequalibus; pectoralibus radiis supernis setaceis, liberis; caudali rotundatd: squamis mediocribus, levissime cilia tis. B. 5; D. 6-1/9; A. 1/8; C. 13, &c.; P. 7et 16; V. 1/5. LoNG. unc. 4. lin. 8. |