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Show 26. ZOOLOGY OF THE VOYAGE OF THE BEAGLE. Both this last fin and the anal terminating in a considerable point behind. V entrals large, reaching very nearly to the anal. D. 8-9; A . 7; C. 15, &c. ; P . J6; V. 1f5. Length 7 inches 9 lines. CoLOUB.-(In spirits.) Dark brownish yellow, with faint indicatio~ of three d~ ky patches or abbreviated transverse fascire, one beneath each dorsal, and the third on each stde of the upper part of the tail. Second dorsal and anal crossed by several whitish longitudinal lines; the posterior point of each fin nearly black. This species was obtained by l\Ir. Darwin at !ahiti. .It is ~robably the U. trij'ascialu of Cuvier and Valenciennes, who received their spec1m~ns from the Carolina and Sandwich I land . But it does not so well accord w1th the Mulle multibande of Quoy and Gaimard, which is supposed by the authors of the " Histoire de Poisson :· to be the same as their species. If the figure in the Zoology of " Freycinefs Voyage" be correct, the Mulle 1rut.ltibande has the nostrils much maHer, and the spine of the first dorsal much tronger; the ventrals also are relatively much horter, so as to reach very little more than half way to the anal. Future ~b ervntion must determine whether the two fish are distinct or not. 3. UPENEUS PRAYEN IS. Cuv. et Val.? Upeneus Praymsis, C~n. n Val. Hb"t. des Poiss. tom. ili. p. 357. 1 FoaM.-Very much resemblinCF that of the U. trifa c-iatus, but with the following differences. The eyes rather larger, di tant from the end of the nout rather more than two diameters and a half. uborbitals trnversed towards their lower margins by a number of lines, each terminating in a pore, and with their whole disks tudded besides with pores without lines : the lower margin it elf presents four distinct deeply-cut notches, the first of which receives the end of the maxillary when the mouth is closed. A single row of small conical teeth in each jaw; in addition to which, in the upper, there nre some stronger one in front, e~-terior to the others, amounting to eight in number, the central pair of which bends inwards or toward each other, and the three on each ide, which are the strongest of all, backwards and outwards. No teeth on the vomer or pal tines. The po terior extremity of the maxillary is much narrower than in the last pecie·. Spine of the opercle ha.rp and well developed, about two line and a quarter in length. Barbules reaching very nearly to the posterior margin of the opercle. Ramifications of the mucous tubes on the lateral line very numerous. lleight of the first dorsal equalling r.1ther more than half the depth. puce between the two dorso.ls equalling half the length of the second dorsal. This last fin pointed behind, as well as the anal, but not o much so as in the U. trifascia.tu • Pectoral' when I id back reaching to a vertical line from the extremity of FISH. 27 the first dorsal. Ventrals reaching a little beyond the pectorals, but falling short of the anal by a space equalling half their own length. D. 8-9; A. 7; C. 15, &c.; P. 16; V. 1/5. Length 8 inches. CoLOUR.- " Vermilion, with streaks of iridescent blue."-D. In spirits, the colour appears of a uniform dull reddish yellow, without any indication of spots or other markings on the fins or body. Habitat, Porto Praya, Cape Verde Islands. I suppose this to be the U. Prayensis of Cuvier and Valenciennes, the description of which, so far as given in the" Histoire des Poissons," is tolerably applicable. Those authors, however, mention a spot in the middle of each scale of a deeper red than the ground colour, which is not alluded to by Mr. Darwin in his notes, and of which I see no trace on the fish in its present state. On the other hand they are silent with regard to the blue streaks. In some of its characters, especially as regards the teeth, this species seems to approach the U. maculatus ; but the colours are different in this last also, which is moreover found on the opposite side of the Atlantic. FAMILY.-TRIG LIDJE. TRIGLA KUMU. Less. et Garn. Trigla kumu, L eas. et Gam. Zoologie de la Coquille, (Poissons) Pl. 19. ----:.- Cuv. et Val. llist. des Poiss. tom. iv. p. 36. FoRM.-In general appearance very much resembling the T. Hirundo, but more elongated. Depth contained about five times and a half in the entire length. Head rather more than four times and a quarter in the same. The obliquity of the profile about the same as that of the T. Hirundo, but the concavity of the interocular space less. The granulations on the head not so coarse, or so strongly marked, the lines in which they are arranged being closer and more numerous : those on the suborbitals radiate from a point nearer the extremity of the snout : no crest or ridge at the bottom of the suborbital, and only a very indistinct one at the bottom of the preopercle : as Cuvier has well noted, the grains on the border of the preopercle are divided into little isles, or collected in clusters, by irregular lines which undulate amongst them ; and in this specimen, the same cha1·acter presents itself on the posterior and upper portion of the suborbital: some of the first lines on the opercle are plain, or without granulations. Snout emarginated, with three or four denticulations on each side rather sharper and more developed |