SIIICAII-ISUK 



603 



tlu' lliinily is rc|)rcsciil('ci cliielly hy llir sul)t':iiiiily Siln- per thus lies in tlic vcdiirtioii of tlu' dursal iiii (or lins, 

 ri(l(r /Irlfi-dp/rrn'. with tlic siiiuir cxcriiiiiiii that Blee- i both nC ihc I'.'iycd, ;intcrii)f liii ;iiiil < if the adipose fin), 



Ki:ii has rcf'ciTcd the l'ini(ias'ni<(\ with slrmiiicr spinous comliiiicd with tiic cidn^uatinii of the anal tin. Grx- 



\\\\ ill till- coiuparativciy longer dorsal fin ami with tiikk's //clcrd/jtcrfu (with diftorcnt (ins) expresses tiiis 



eonipai'atively shorter anal fin, to the Bagriform division, eharai'ter fairly well, 'i'lie whole (Tlanonn)rj)hous scries 



wliich in eonjunctidii with a more advanced development is so nearly coiitimioiis, however, that up to the pre- 



of the dorsal spine possesses a support for this spine in sent tiie limits of the families whirli we are couipcllcd 



11 distinct euiruss on the head and the antt'iior part of to establish by the great iiiiniber of the species, are in 



the liaeU. The essential character of the Siluroids pr((- a measure arl)itrarv. 



(iKNis SILURUS. 



X(i (idijinsf fill. Diirsdl fill siiff-idi/ed (iritlmiif sjiiiiaiis lai/). Dciisf ciinls nf pointed trctli in tlie lo/rer jair, on 

 tlic iiitcniiii.i illini/ lioiifs, (uiil on flic lirud of tlic roincr. Jltnlicls / or (>, tiro of irliivli licloni/ to the ujiper Jdir, 

 the rest to the loirer. Anal fn united iit the ii(if<c In/ ii ineiiilinuie to the rounded caudal fin, tint at the inari/in 



separated f'roin the tatter fin. 



'I'hc genus Silnrus, the name of Avhich occurs even .") known sjiecies, ;! from India, 1 from Dauria, (.'hiiia, 



in .Ij.iAN and AtheXjEus (in the second century A. 0.). and dapan, and 1 from I'.uroiie. An East Indian ge- 



was in Aijikdi" a combination of tlie Burbot and the luis of small fishes, Silarichthi/s, comes extremeh- near 



Sheatfish, though the former was also imduded in the Sihints, but is distinguislied therefrom bv the ol)li(pie 



genus (iadits. In Linn.eus'' it embraced, together with j shape of the caudal tin, with tiie upper corner con- 



the genus Loricaria, the wdiole of that series of families I sirlerably longer than the lower, a character of which 



which AV(' ha\e now called (Tlanomorphs. At present, i w^e find at least traces in Silnrus, and by the closer 



with th(! definition given it by (tlnthei!, it contains union of tliis fin to the anal fin. 



THE SHEATFISH (sw. jialen). 

 SlbUlil'S (ii.ANIS. 



PInte XXX. lig. 1. 



Six hartiels. Dorsal fin situated in front of the niiddle of the ahdoiiicn, about lialf-irai/ hetireen the rcrtical lines 

 from the anterior ends of the insertions of the jtcctond and central fins. Vomerine card of teeth continuous, irith 

 onhj a sliijht indentation at the middle of the hind mari/in. iMirer jair projcctinii hci/ond the tip of the snout. 

 Coloration olire-r/reen, alwre dark, almost blackish, beloir pale, fadin/j eren into irhitish, on the sides spotted; 

 (til the fns rcj)roduce the coloration of the bod// {darker base, lighter manjin), except the dorsal fin, irhieh is plain, 



of the same colour as the back. 



n. bv 

 1 



1.0 1. llK D. 



(83) 87 (89) (14) 1.") (17) 



(10) 11 (12)' 



2—3 



a. .v+n+x: Vert. 20 + 51 (.54) 



Syn. Gadiis. Li.\., Fn. Siiec, ed. 1, p. 109, No. 291; Silurns, It. 

 Sciiii., p. (52. Silunis cirris duobus ad inaxillnni snperiorcm, 

 quatuor in mento, Groxov., .Vms. Ichtli. (1754), p. 6; Afal, 

 0:^B., Vet. Aljad. H.iiidl. 1756, p. 34. iVels. Bl,., Fis(^li. 

 DetdsM., part. I, p. 242. tab. XXXIV. 

 ■Silnrus Glanis, Lin., iSyst. JS'at., ed. X, torn. I, p. 304; Holm. 

 D. Vid. Selsk. SIfr., XII (1779), p. 133, tab. I et II; Ketz., 



Fn. .b'dfv. Lin., p. :!48; 1'ai.l., Zoogr. Ro.^s. Asiat., torn. III. 

 [.. S2; Bdt, Rtzb., Medic. /Cool., part. II, p. 31, tab. V, 

 tig. 2, r, D, E, tab. VI, figg. 1 — 4; NiLSs., Prodi: Icluhi/ol. 

 •Scand., p. 38 ; Cuv., Vai.., Hist. Nat. Poiss., torn. XIV, p. 

 323, tab. 409; Kr., Damn. Fiske, vol. Ill, p. 120; Nn.ss., 

 Stcaud. Fn., Fisl:, p. 359; hhow, Ant. 20-dr. vist. Skand., 

 p. 40; HCKL., K.N., 6'ussu-asserf. Oestr. .'ifon., p. 308, fig. 

 105; SiEii, Siisswasserj. Mitteleur., p. 79; '^\r,KS, Finl. Fiskfn. 

 (disp. Helsingf. 1863) p. 35; Gthr, Cat. Brit. Mm., Fish., 

 vol. V, p. 32; Seidi,., Fn. Bait., p. 100; BucKi,., Nat. Hist. 

 Brit. Fisli., p. 357; MoR., HiH. Nat. Poiss. Fr., torn. Ill, 

 p. 439; Mel.\, Vert. Fenn., p. 310, tab. X; Bn'Cke, FiwA., 



" In Arteui tlie Sbcattisb is mentioned only in (lie .\ppendi.'c (Gen. Pise, p. 82 and Syn. Pise, p. 110). and lias probably been in- 

 troduced thitlier by Linn.kus during bis revision of .-Vrteucs Ichttiijoloijij. See Skdnska resan, p. ('i2. 

 ' Si/sl. Nat., ed. X. toni. I. pp. 304 and 307: ed. XII, loni. I. pp. 501 and 508. 



