194 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



wide, greatly arched, labial folds rudimentary. Teeth small, equal, 

 mimerous, with stronger median cusp and 1 or 2 small lateral cusps. 

 Nostrils nearer mouth tlian snout end, front valves folded inward 

 with appearance as if double, with short rounded lobe. Last gill 

 openings above pectoral. No spiracles. Scales small, with 3 to 7 

 keels. First dorsal above space behind pectorals. Second dorsal 

 above anal. Caudal with pit at root above, subcaudal lobe well 

 developed. 



TRIAENODON OBESUS (Ruppcll) 



Carcharias obcsus Ruppell, Neue Wirbelth., Fische, p. 64, pi. 18, fig. 2, 1835 

 (type locality: Djedda, Red Sea). 



Triaenodon ohesus Muller and Henle, Syst. Beschr. Plagiostomen, p. 55, pi. 

 20, 1841 (Indian Ocean, Red Sea). — Bleekeb, Verb. Batav. Genootsch. 

 (Bengal), vol. 25, p. 80, 1853 (reference).— Dum^ril, Hist. Nat. Elasmobr., 

 vol. 1, p. 386, 1865 (Red Sea).— Gunther, Ann. Mag. Nat. Hist., ser. 3, vol. 

 20, p. 67, 1867 (Red Sea; Aneiteum) ; Cat. Fishes British Mus., vol. 8, 

 p. 383, 1870 (Seychelles; Aneiteum, New Herbrides). — Klunzinger., Verb, 

 zool. bot. Ges. Wien, vol. 21, p. 617, 1871 (Red Sea).— Peters, Monatsb. 

 Akad. Wiss. Berlin, 1875, p. 447, 1876 (Seychelles).— Meyer, Anal. Soc. 

 Bspafi. Hist. Nat. Madrid, vol. 14, p. 48, 1885 (Misol). — Gorgoza, Anal. Soc. 

 Espan. Hist. Nat., Madrid, vol. 14, p. 74, 1885 (Manila). — Brusina, Glasnik 

 Naravosl. Druztva, vol. 3, p. 226, 1888 (Rea Sea).— Dat, Fauna British 

 India, Fishes, vol. 1, p. 25, 1889 (probably off India). — Blera. Cat. Fauna 

 Filip., vol. 1, p. 615, 1895 (Luzon, Manila Bay). — Gunthee, Journ. Mus. 

 Godeffroy, pt. 17, p. 482, 1910 (Misol, Macassar, Aneiteum, Tahiti). — 

 Gasman, Mem. Mus. Comp. Zool., vol. 36, p. 163, 1913 (Red Sea and Indian 

 Ocean).— Weber, Sihoga Exped., Fische, vol. 57, p. 592, 1913 (Makassar, 

 Daanar, Northwest Waigiu). — Fowler and Ball, Bishop Mus. Bull. 26, p. 

 4, 1925 (Laysan, Lisiansky and Wake Islands). — Fowlek, Mem. Bishop 

 Mus., vol. 10, p. 22, fig. 7, 1928 (Laysan example) ; Proc. 4th (1929) Pacific 

 Set Congr., Java, p. 489, 1930 (Laysan). 



Trioenodon ohesus Sauvage, Hist. Nat. Madagascar, Poiss., p. 510, 1891 (ref- 

 erence) . 



Leptocharias obesus Gray, List fish British Mus., p. OT, 1851 (reference). 



Triaenodon obtusus Day, Fishes of India, pt. 4, p. 720, pi. 189, fig. 3, 1878 (type 

 locality: Kurrachee) ; Fauna British India, Fishes, vol. 1, p. 25, 1889 (fig. 6 

 copied). — Gabman, Mem. Mus. Comp. Zool., vol. 36, p. 163, 1913 (copied). — 

 Pearson, Ceylon Administr. Rep., 1914, p. E4. 



Eulamia odontaspis Fowler, Proc. Acad. Nat. Sci., Philadelphia, 1908, p. 63, fig. 

 2 (type locality: probably Indian Ocean). 



Depth 4% to 4% to subcaudal origin; head 4% to 4%, width 1% 

 to 1%. Snout 2% to 3 in head, broadly obtuse wdth rounded profile 

 as seen from above; eye 51/5 to 5% in head, 1% to 2 in snout, 3 to 

 3^ in interorbital, depth % its length; dentary width 214 to 2% 

 in head, length % its width, preoral 1% to 1% in dentary width, 

 labial fold very short and not extended along jaws; dentition unde- 

 veloped; nostrils nearer mouth than snout end, about 214 in inter- 

 narial space, front nasal valve moderate triangular flap and hind 



