86 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



CHAETODON CITRINELLUS Cuvier 



Chaetodon citrinelbis (Broussonet) Cuvier, Hist. Nat. Poiss., vol. 7 1831, 

 p. 27. Guam; Tahiti. — Valenciennes, Regne Animal, Poiss., 111., 1839, pi. 

 39, fig. 1 (Guam). — Gunther, Cat. Fish. Brit. Mus., vol. 2, 1860, p. 33 

 (Amboina, Fiji); Journ. Mus. Godeffroy, vol. 2-3, Heft 5-6, 1874, p. 47, 

 pi. 35, fig. B (Paumotus, Society Islands, Bonham Island, Samoa, Fiji) . — 

 Martens, Preuss. Exp. Ost -Asien, 1876, p. 388 (Amboina). — Ogilby, 

 Mem. Queensland Mus., vol. 1, 1892, p. 54 (on Chaetodon nigripes). — 

 Elera Cat. Fauna Filipin., vol. 1, 1895, p. 487 (Luzon, Batangas, 

 Nasugbu). — Jordan and Evermann, Proc. U. S. Nat. Mus., vol. 25, 

 1903, p. 357 (Kotosho, Formosa). — Jordan and Richardson, Bull. 

 Bur. Fish., vol. 27, 1907 (1908), p. 269 (Cagayancillo).— Jordan and 

 Snyder, Proc. U. S. Nat. Mus., vol. 42, 1912, p. 510 (Okinawa).— Weber, 

 Siboga Exp., vol. 57, 1913, p. 306 (Karkaralang, Beo, Salibabu, Banda, 

 Tuir, Rotti, Samau). — McCulloch, Austral. Zool., vol. 2, pt. 3, Feb. 10, 

 1922, p. 91, pi. 27, fig. 235c (New South Wales).— Ahl, Arch. Naturg., 

 vol. 89, abth. A, Heft 5, 1923, p. 104 (New Guinea, Jaluit, New Hanover, 

 Amboina). — Fowler, Bishop Mus. Bull., No. 22, 1925, p. 34 (Samoa). — 

 Herre and Montalban, Philippine Journ. Sci., vol. 34, No. 1, September, 

 1927, p. 68, pi. 14, fig. 1 (Luna, Parabir). 



Tetragonoptrus citrinellus Bleeker, Nederland. Tijds. Dierk., vol. 1, 1863, p. 

 234 (Ternate). 



Chaetodon pundatus (Parkinson) Cuvier, Hist. Nat. Poiss., vol. 7, 1831, 

 p. 28. Tahiti. 



Chaetodon nigripes De Vis, Proc. Linn. Soc. New South Wales, vol. 9, 1885, 

 p. 453. Queensland. 



Chaetodon citrinellus var semipunctatus Ahl, Arch. Naturg., vol. 89, abth. 

 A, Heft 5, 1923, p. 104 (on Chaetodon citrinellus var. GIjnther, Journ. 

 Mus. Godeflfroy, vol. 2-3, Heft 5-6, 1874, p. 47, pi. 35, fig. B). 



Depth 13^ to 1>^; head 2% to 3^, width V/g to 2}/^. Snout 2% 

 to 3}/s in head from snout tip; eye 2% to 3, greater than snout in 

 young to 13^ with age, greater than interorbital in young to equal 

 with age; maxillary 3^ to ^ in snout, 3^ to 4}4 in head; interorbital 

 3 to 3%, convex. Gill rakers 3 + 18, short points, 3^ of gill filaments, 

 which 13^ in eye. 



Scales 35 to 40 between gill opening and caudal base; tubes 32 to 

 33 in lateral line; 8 or 9 scales above lateral line, 16 or 17 below. 

 Scales with 9 to 14 basal radiating striae; apical denticles 50 to 90, 

 with 3 to 10 transverse series of basal elements; circuli fine. 



D. XIII to XV, 20, I or 21, I, fourth spine 1^ to IK in total 

 head length, fourth ray 1}4 to 1^; A. Ill, 15, i to 17, i, second 

 spine 1,^4 to 13^, fourth ray l}iiol'^/i; least depth of caudal peduncle 

 2% to 33^; caudal 13^ to 1%, hind edge little convex; pectoral 1 

 to 13^; ventral 1 to 13^. 



Body dull brown, paler to whitish beneath. Each scale on side of 

 trunk and tail with a median blue green to gray small rounded spot, 

 following courses of scales all more or less as inclined rows above 

 median body axis. Blackish brown band from just before spinous 

 dorsal, joining its fellow, down to eye and across lower cheek to gill 



