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Show OF' TilE VOYAGE OF THE BEAGLE. 6 ZOOLOGY 9 . fi d b t the gills: body compressed towards b d ssed and much m ate a ou h h' k FonM.-Head large, su - epre , . d '· t five and a half times in the lengt : t IC ness I torals contame auou . f . . I the tail. Depth at t Je pee d I II ad about four and a hal ttmes m t 1e . b t tl . e fourths of the ept 1. e d 1 at the same pomt a ou ue - . . 1 tl p ofile nearly horizontal. Eyes mo erate y d h 1 ual to tts own eng I. r . I 11 d length; its brea t near y eq f h I d. the intermediate space a httle 10 owe . . 1 one-fourth that o t e lea . large w1th a dtameter near Y . . b dtl Some appearance of a shallow groove ' tl half a diameter Ill rea l. f I out and scarcely mot·e Jan G h' to beneath the anterior angle o t 1e eye. , h' t th first dOt·sal ape reac mg 1 1 on the nape reac mg o e · 1 . t th the outer row stronger than t 1e ot 1ers, h 'tl broad band of ve utme ee , 1 th Jaws equal: eac WI l a h t enty six in the upper jaw; be ow ey 1 1 k d f these slronCTer ones i ere are w • and slight y 1oo e ; 0 . "" . • no vomerine or palatine teeth. 11 d more Irregular: no canmes. I f are fewer, sma er, an . . I tl 1. the fir~>t six or seven rays near y ree b t fl fth of the enttre eng I, ova , Pectorals a ou one- t f G . tl sixteen that follow connected by mem- 1 t s like those o · mger; le to their base, anl se aceou. • 1 't d . the usual manner and a little shorter 1 d h branched Ventra sum e m ' f brane as usua, an muc < • • l'ttle behind the point of attachment o 1 Tl first dorsal commencmcr a very 1 · than the pectora s. le . fo I fi hen laid back; the anterior spmes d I 'ng to the extremity o t lOse ns w . the pectorals, an reac 11 I f tl b d . the last three gradually decmasmg, rather exceeding in length half the dept 1 o I le o dy d, 1 This last fin witll the first ray b t · t' gat the foot oft 1e secon orsa · with the mem rane ermma m . f tl first dorsal . those which follow, to d f 1 h · ·ht with the anteriOr rays o 1e ' . simple, an o t le same e~g 1 . h d b hed. from the root of the ninth spnngs the number of nine, nearly of the same lelg. t,. an radn~f 'the entire number would be ten. 1 · h · ht be reckoned as distinct, an I so, a simple ray w 11C mig d . t' l'ttle sooner than the second dorsa1' Anal commencing a little more backward, an termma m~ a 1 b f, . both these fins terminate to which in other respects it answers; the last ray doub e a; e :r: ~ore than one-fifth of the . . 'nt behind. Space between the anal and the cauda rat e . d d b t m a pen . d' I b eath Caudal roun e , a ou entire length, and equalling twice the depth Jmme tale. y. en . r ra s (which last one-sixlh of the entire length; the division between the prmctpal and a~c~:.:~l~le/ The usual are numerous, especially above), not well marked; the former muc · papilla behind the vent. . · a Ion itudinal line, No visible lateral line. Scales rather large; about thirty-seven m. ·~. 1 . fM of d · r h scale With an 111egu at and eleven in a vertical; ciliated, the conceale portiOn o e~c b b't I arked with very numerous stn.r e, amount.m g to twen t y-fi ve or more , Skm of t.h e su or ·ilo arl min to two: a four longitudinal lines of salient dots, the third from the top forkmg pastel y ther passes similar line at the upper pat·t of the opercle at t 1l e b oun d ary o f the scales' whencek 'a no blique b h. d 1 · · tl · d shorter one ta mg an ° vertically across the branchial membrane; e m t liS IS a ur • direction backwards. . the CoLOun-(In spirits.) Dusky grey, with about ten, rath er m. d'I S t'm et l o~g1. tudina.l da. rk .l mes fo nm all body extending from the pectorals to the cau d a1 · Fm. s d us k y, w Jth some mdtcfa thw n o s irregu' lar whitish spots scattered here and there. A d ar k spo t on the upper half o t e eye. Habitat, Galapagos Archipelago. This is undoubtedly a new species. It belongs to t h e same section as . tlhlye G. niuer of the European seas, which in form it very muc 11 resem bl e s ' espec1a 1 fee in its ~l arge inflated heau, and in having the uppe1·most rays o f tlJ e pe ctora ds r al and setaceous. It differs, however, in having fewer rays m· th e dorsal an an FISII. 97 fins, and consequently a larger interval between the anal and the caudal; also, in the number and arrangement of the dotted lines on the cheeks. The colours are likewise different ; and, 'in the living fish, in which they were not noticed, probably the dark longitudinal lines, alluded to in the description above, are much more conspicuous than they are at present. This species was taken by Mr. Darwin off Chatham Island, in the Galapagos Archipelago. 2. GoBius OPHICEPHALUs. Jen. PLATE XIX. FIG. 3 G. pallenti-plumbeus,fusco-t·eticulatus: corpore elongato, gracili, undique alepidoto: capite lato, depresso, genis tumidis; /tis et rostro punctis valde salientihus, creberrimis, lineis undantibus dispositis: maxillis ceq~talihlts: dentibus velutinis; externis, prcesertim lateralibus, fortioribus, acu,leiformibus ; caninis nullis: oculis pat'Vis, p1'0minulis, intervallo plus quam diametrum cequante : pinnis dorsalibus subcontiguis, altitudine subcequalibus ; pectoralibus mdiis omnibus membrana inclusis; caudali t·otundata, rarliis clausis, Sltbacuta. D. 8-1116; A. lfl3; C. 17, &c.; P. 21; V. 1/5. LoNG. unc. 2. lin. 11. FoaM.--Body considerably elongated, and compressed posteriorly; the greatest depth beneath the first dorsal, equalling rather less than one-eighth of the entire length : thickness at that point rather less than the depth. Head broader than the body, very much flattened in the crown behind the eyes, with the cheeks tumid, and, on the whole, snake-like in appearance : its length one-fifth of the entire length ; its breadth two-thirds of its own length. Eyes small, but I'ather prominent, high in the cheeks, with a diameter scarcely exceeding a line in length, or about one-sixth that of the head; the space between a little hollowed out, and nearly a diameter and a half across. Snout short and obtuse: jaws equal; the gape not quite reaching to beneath the middle of the orbit. The teeth form a broad velutine band in each jaw, with those in the outer row strong and slightly hooked: of these last there are about twenty in the upper, the lateral ones being stronger than those in front; in the lower they are not so numerous, and more irregular: none that can be strictly called canines: likewise no vomerine or palatine teeth. Pectorals one-sixth of the entire length, oval, with the middle rays longest; all the rays included in the membrane. Ventrals united; about two-thirds the length of the pectorals. First dorsal extending beyond the extremities of the pectorals; the rays very gradually decreasing in length, the membrane beyond the last also sloping very gradually down till it nearly reaches the second dorsal, which it does not quite touch. Rays of the second dorsal of nearly uniform height, about equalling the longest of those in the first, also equalling the depth of the body beneath, The last ray in both these fins is double, as in the last species. The anal commences beneath the fourth ray of the second dorsal, and terminates a little sooner than t~at fin. The caudal, when the rays are spread, appears rounded; but when closed, somewhat pomted: 0 |