210 BULLETIN 100, UNITED STATES NATIONAL MUSUEM 



62233 U.S.N.M. Nafa. Albatross collection. Paratype of Lepidaplois loxoz- 

 onus. Length, 107 mm. 



82970 U.S.N.M. Paumotu Islands. Wilkes expedition. Type of Lepi- 

 daplois trotteri. 



Genus PSEUDODAX Bleeker 



Pseudodax Bleeker, Proc. Zool. Soc. London (December 10), 1861, p. 409. 

 Type Odax moluccanus Valenciennes, orthotypic. 



Body oblong, compressed. Each jaw with 2 pairs of broad incisors 

 with cutting lateral edge. Preopercle edge entire. Branchioste- 

 gals 6. Scales moderate, 32 or 33 in lateral line, which continuous. 

 Head scaly and cheek covered with small scales. Dorsal spines 11, 

 rays 12, Anal spines 3, rays 14. 



Indian Ocean and East Indian region. Only the single species 

 described below. In a superficial way it is greatly suggestive of 

 some species of Anampses, but is easily distinguished among all 

 members of the family by its remarkable broad incisor-like teeth. 



PSEUDODAX MOLUCCANUS (Valenciennes) 



Odax moluccanus Valenciennes, Hist. Nat. Poiss., vol. 14, 1840, p. 305, 

 pi. 408, fig. 2. Moluccas; Regne An. Cuv. 111. Poiss., 1839, pi. 91, fig. 3. 



Pseudodax moluccanus Bleeker, Atlas Ichth. Ind. Neerl., vol. 1, 1862, p. 80, 

 pi. 22, fig. 6, and pi. 18, fig. 5 (Celebes, Amboina, Ceram). — Guichenot, 

 Notes I. Reunion, vol. 2, 1862, p. 28. — Bleeker, Verslag. Ak. Wet. 

 Amsterdam, vol. 15, 1863, p. 20 (Hitu, Amboina); Nat. Tijds. Dierk., 

 vol. 1, 1863, p. 263 (Atapupu, Timor). — Guichenot, M6m. Soc. Sci. Nat. 

 Cherbourg, vol. 11, 1866, p. 67 (type, Reunion). — Day, Fishes of India, 

 pt. 3, 1877, p. 409, pi. 89, fig. 1 (Malay Archipelago) ; Fauna British 

 India, vol. 2, 1889, p. 420, fig. 146. 



Pseudodax moluccensis Gunther, Cat. Fish. Brit. Mus., vol. 4, 1862, p. 208 

 (Amboyna, Java); Fishes of Zanzibar, 1866, p. 102 (Zanzibar). 



Odax moluccensis Cartier, Verh. Phys. Med. Ges. Wiirzburg, 1873, p. 106 

 (Bohol).— Elera, Cat. Fauna Filip., vol. 1, 1895, p. 557 (Bohol, Cebu). 



Depth 2% to 23^; head 3 to 3^, width 2% to 23^. Snout 2}4 

 to 23^; eye 6 to 6%, 23^ to 2^ in snout, 13^ in interorbital; maxillary 

 reaches ^ to eye, 33^ to 33^ in head; interorbital 434 to 4%, convex. 

 Gill rakers 5 + 9, short, fleshy, tubercles, spinescent, with about 5 

 spines to each. 



Scales in lateral line 29 + 2 or 3; 4 scales above lateral line, 10 or 

 11 below, 10 to 12 predorsal. Scales with 20 basal radiating striae, 

 apically with fine, obsolete, imperfect striae; circuli fine. 



D. XI, 12, 1, eleventh spine 3^ to 4% in head, first ray 33^8 to 434; 

 A. II, 11, I, second spine 6 to 7, first ray 33^ to 3%; caudal l^i to 

 1}4) hind edge slightly convex; least depth of caudal peduncle 1% to 

 2; pectoral 1%; ventral 13^ to 1^. 



Dark brown generally, each scale with slightly darker median 

 blotch. Scales on opercle each with dark blotch. Iris brown. Fins 

 s\l brown, mostly more or less dusky terminally. Dorsals and anals 



