166 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



each with basal scaly sheaths. Dorsal begins well before middle in 

 body length. Caudal emarginate or forked. 



Widely distributed in the Indo-Pacific. We accept Dules Cuvier 

 1829 as different from Dulus Viellot 1816 in birds, thereby eventuat- 

 ing the family name Duleidae. This case parallels our acceptance of 

 Halichoeres Ruppell as different from Ilalichoerus Nilsson in seals. 

 We may note that Moronopsis Gill was proposed with the genotype 

 Dules taeniurus Cuvier, thus the unnecessary Safole Jordan with the 

 same genotype falls as an exact synonym. 



ANALYSIS OF THE SPECIES 



a 1 . Dules. Caudal fin immaculate or with a single black blotch on each lobe 



in the young, becoming broad black margin with age; body usually with 



dark spots; 16 to 19 gill rakers on lower branch of first arch; scales 40 to 



45 + 4 or 5 in lateral line. 



b 1 . Caudal slightly emarginate, lobes rounded; anal rays 10; maxillary reaches 



below middle of eye, or beyond with age rupestris 



b 2 . Caudal more emarginate; anal rays 11 to 13; maxillary not or barely 



reaches middle of eye marginatus 



a 2 . Moronopsis. Caudal fin with median black band and 2 broad black bands 

 on each lobe; body without dark spots; 24 to 29 gill rakers on lower branch of 

 first arch; scales 50 or 51 + 5 in lateral line; anal rays 10 or 11 taeniurus 



DULES RUPESTRIS (Lacepede) 



Centropomus rupestris Lacepede, Hist. Nat. Poiss., vol. 4, 1802, pp. 252, 273. 

 Col de l'lsle de la Reunion. 



Dules rupestris Cuvier, Hist. Nat. Poiss., vol. 3, 1829, p. 119 (Bourbon and 

 Mauritius). — Valenciennes, Hist. Nat. Poiss., vol. 7, 1831, p. 477 (Mau- 

 ritius). — Guerin, Iconogr. Regne Animal, Poiss., 1829-38, p. 8, pi. 6, fig. 2 

 (Bourbon).— Gunther, Cat. Fish. Brit. Mus., vol. 1, 1859, p. 268 (Fiji, 

 Ovalau, Amboina, Mauritius). — Peters, Monatsb. Akad. Wiss. Berlin, 

 1868, p. 256 (Basey River, Samar; Burbuen River, Leyte); 1876, p. 437 

 (Mauritius). — Gunther, Trans. Roy. Soc. London, vol. 168, 1879, p. 471 

 (Rodriguez). — Meyer, Anal. Soc. Espan. Hist. Nat., Madrid, vol. 14, 1885, 

 p. 13 (Menado, Celebes; Siao, Sangi).- — Jatzow and Lenz, Abh. Sencken- 

 berg. Naturf. Ges., vol. 21, 1889, p. 500 (Kokotoni, Zanzibar). — Sauvage, 

 Hist. Nat. Madagascar, Poiss., 1891, p. 150, pi. 41B, fig. 3.— Weber, 

 Semon's Zool. Forsch. Reis. Austral., vol. 5, 1895, p. 262 (Amboina, fresh 

 water). — Fowler, Proc. Acad. Nat. Sci. Philadelphia, 1906, p. 512 (Samoa 

 and Tahiti). 



Doules rupestris Guichenot, Notes He Reunion, vol. 2, 1862, p. 24. 



Kuhlia rupestris Boulenger, Cat. Fish. Brit. Mus., vol. 1, 1895, p. 36 (Zan- 

 zibar, Mauritius, Rodriguez, Pelew Islands, Ponape, Amboina, Solomons, 

 New Hebrides, Fiji, Tonga). — Pfeffer, Thierw. Ost Afrika, Fische, 1896, 

 p. 3, fig.— Jordan and Seale, Bull. Bur. Fisher., vol. 25, 1905 (1906), p. 255 

 (Vaisigano River above Apia). — Seale and Bean, Proc. U. S. Nat. Mus., 

 vol. 30, 1907, p. 242 (Zamboanga).— Fowler, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1907, p. 264 (name only). — Jordan and Richardson, Bull. Bur. 

 Fisher., vol. 27, 1907 (1908), p. 254 (Mindoro Island).— Gilchrist and 

 Thompson, Ann. South Afric. Mus., vol. 6, 1908-10, p. 214 (Umbilo River 

 tidal, Durban). — Regan, Proc. Zool. Soc. London, 1913, p. 375 (Indo- 

 Pacific to Tuamotus). — Beaufort, Bijdr. Dierk., Amsterdam, 1913, p. 110 

 (Kajeli, Buru). — Boulenger, Cat. Fresh Water Fishes Africa, vol. 3, 1915, 



