Ko.i29(;. JAPANESE CH.ETODONTTD.E— JORDAN AND FOWLER. 549 



11. ZANCLUS Cuvier and Valenciennes. 



Zanclua (Comiuerson Ma.) lyACEi'EUE, Hist. Nat. Poiys., IV, 1803, \u 473 (cm-- 



nutus; non-binomial) . 

 PomacanOms \A. Lacepede, Hist. Nat. Poiss., IV, 1803, p. 517 {canescens, etc.). 

 Zandus Cuvier and Valenciennes, Hist. Nat. Poiss., VII, 1831, p. 102 {comu- 



tus). 

 Gonopterii.'i Grqnow, Cat. Fish., Ed. Gray, 1854, p. 77 {incerem). 

 Gnathocentrnm Guichenot, Ann. Maine et Loire, IX, 1866, p. 4 {centrcHinatlmm; 

 young). 

 Characters of the genus inchided al)ove. It is possible that the 

 generic name Pomacanthus^ Lacepede, should be used for this genus, 

 as the first species placed in that composite group by its author is the 

 Chsetodon canescens of Linnaeus, The name Ztmclus occurs still eai'lier 

 in Lacepede's work, but not in binomial form. It is, however, for 

 reason of priorit}^ adopted by Bleeker. If, however, the first species 

 named be recognized as the type of the genus, a rule the present writ- 

 ers believe to be finally inevitable, we must substitute Pomacanthus 

 for Zandus. 



[ZayKXor, a sickle.) 



ig. ZANCLUS CANESCENS (Linnaeus). 



Chsetodon canesrens LinntEUh, Syst. Nat., 10th ed., 1758, p. 272; Indies (after 



Artedi; young). 

 Pomacanthus canescens Lacepede, Hist. Nat. Poiss., IV, 1803, p. 517. 

 Zandus canescens GtJNTHER, Cat., II, 1860, p. 493. — Bleeker, Atlas Ichth., Chset., 



1877-78, p. 78, pi. v, fig. 3; Celebes, Andjoina. 

 Ch&iodon cornutus Linn.^^us, Syst. Nat., 10th ed., 1758, \). 273 (after Artedi; 



adult). — Lacepede, Hist. Nat. Poiss., IV, 1803, p. 473, \>\. ii, fig. 1.— Jordan 



and EvERMANN, Fish N. and M. America, II, 1898, p. 1687. 

 Zunclus cornutus CvviER and Valenciennes, Hist. Nat. Poiss., VII, 1831, p. 102, 



pi. CLXxvii.— Bleeker, Atlas Ichth., Cliirt., 1877-78, p. 77, pi. iv, figs. 1, 2; 



Sumatra, Java, Celebes, Cerain, New (iuinea, Waigiu, etc. 

 Zandus centrognathus Gv\ier and Valenciennes, Hist. Nat. Poiss., VII, 1831, p. 



528; near equator, 75° E. 

 Gonojiterus mcerejis (jRotiow, Cat. Fish., Ed. Gray, 1854, p. 77; India. 

 Chxtodon nudus Gronow, Cat. Fish., Ed. Gray, 1854, p. 76; Mari Indico. 

 Zandus montrouzieri Thiolliere, in Montrousier, Fauna Woodlark Island, 1857, 



p. 168; Woodlark. 



Head 2|; depth about as great as length; eye 2^ in snout. D. IX, 

 38; A. Ill, 33; snout 1^ in head, greatly produced, the upper profile 

 very concave; teeth slender, brush-like, very much projecting; ante- 

 rior rays of dorsal and anal produced; first and second dorsal spines 

 very short, the third greatly produced, ending in a long filament 

 exceeding total length of fish; the longest soft ray about 1^ in bod}", 

 posterior dorsal rays short, vertical, or even inclined forward; pectoral 

 some longer than snout, shorter than the ventrals. 



Color in life, snout chiefly white, point of upper jaw black, followed 

 l>y a large orange patch separatt'd from the white by a narrow ))lack 



