11:^ 
MEMOIllS OF THE QEEEESLAND UVSEVU, 
spine at the angle, the hinder border usually serrated. One dorsal tin, with xi 
to xiii 18 to 21 raysj spines strong, pungent, graduated; soft portion shorter 
than the spinous, scaly, Avith rounded outline. Caudal rounded with 15 branched 
rays. Anal siiuilar to soft dorsal, Avith iii 17 to 19 rays, the spines graduated. 
Pectoral small and oi)tusely ])ointed, with 17 to 20 rays. A'entrals inserted 
beloAA’ the i>ectorals, close together, well developed, Avith i 5 rays, the spine long 
and strong, the outer ray longest, AA’ithout accessory scale. Gill-membranes more 
or less broadlA' attached to the istlnmis. 
Etymology : — Greek, bristle; oSojf, a tooth; oirXa, arms or implements 
of Avarfare. 
Eaugc : — Chadodontifoiau fishes of small or moderate size from the Western 
Pacific' Ocean. About sev<m species are recognized. 
Key to the Queensland Species. 
ay Depth of body l-d in its length ; D. xi 21, the soft portion two thirds of the length of the 
spinous . . - . . . . . . . . . . . . . . , . . dubouleyi. 
a-. Depth of body about lialf its length ; D. xiii 10, the soft portion nearly as long as the 
spinous . . . . . . . . . . . . . . . , . . . . conspicillatus. 
CH.STODONTOPLUS DUBOULEYI (Gunther). " 
Holacanthus diihoidayi Gunther, Ann. and Mag. ^^at. Hist. (3) xx, 1867, p. 67 ; Maclcay, Proc. 
Linn. Soc. X. S. Wules, ii, pt. 4, 1878, p. 3n2 ; Klunzinger, Sitz. Akad. Wien, Ixxx, i, 1879, 
p. 361; Maeleay, ibid., v, pt. 3, 1881, p. 395 {after O tint her) ; McCulloch, Rec. Austr. 
Mus., ix, pt. 3, 1913, jn 360, pi. xiv ; id., Rec; West. Austr. Mus., i, pt. 3, 1914, p. 222. 
Chwiodonioplus duhoidayi Bleeker, Arch. Xecrl. Sci. Xat., xii, 1877, p. 22. 
Type local it fj: — Xortli-West (Aast of Australia.'^ 
l)e])lh of body 1-4 in its length ; dorsal and ventral contours about equally 
elevated but not symmetrical, the former linear and strongly a('cli\mu.s to above 
the anterior border of the eye. thema* * rising abruptly in a high convexity to 
about the 6tli dorsal spine, beyond \Adiieh it descends in a longer and more gentle 
curve to the caudal peduncle; ventral contour slightly concave betAveen the lip 
and the throat, tlumce evenly rounded to tlu^ jAediinele, the least dej^th of Avhich 
is 7-2 in the length of the body. AVidth of head 1-55 in its length, which is 1-2 
in its depth and 3*85 in the body-length. Diameter of eye 1*15 in the length of 
® While fully recognising the value of the law which strictly enjoins that there shall be no 
tampering with an mithor’s original ortliography, there are, I think, cjases where a certain amount 
of relaxation from th(> .strict letter of the law is not merely acRhsable ):>ut incumbent upon us. 
One such case is that of a palpable printer’s or pern error, of whK‘h tho well-known substitution of 
Oryenus for Oreynvs is example ; another s\ich is tho incorrect spelling of a proper name, 
whether througli ignoi-ance, (carelessness, or accident. Two examples of this latter occur at once 
to me among Australian Fishes, namely diihoidayi Gunther and philippi Schneider, which should 
respectively he altered to dubouleyi and phillipi^ so that those Avhose names are thus honored 
may be correctly designated. 
* Mr. du Bouley forwarded collections to the British Museum from both Roebuck Bay and 
King Sound, and veo may, therefore, assume that one or other of these inlets represents the tj^e 
locality. 
