FISHES OF THE PHH.IPPINE AND ADJACENT SEAS 205 



65807 U.S.N, M. Papeete, Tahiti. Albatross collection [05925]. Length 55 to 



57 mm. Two examples. 

 84223, 84255 U.S.N.M. Zamboanga, Philippines. Dr. F. Baker. Length 125 to 



165 mm. 



Genus PARACANTHURUS Bleeker 



Paracanthurus Bleeker, Ned. Tijds. Dierk., vol. 1, 1863, p. 254. Type 

 Teuthis hepatus (not Linnaeus) Schneider =Coioco2nt.s lambdurus Gill, 

 monotypic. 



Colocopiis Gill, Proc. U. S. Nat. Mus., vol. 7, 1884 (1885) p. 279. Type 

 Colocopus lambdurus Gill, orthotypic. 



Greatly like the typical species of Hepatus but with only 2 or 3 

 branched ventral rays. 



This genus was first named by Bleeker, though apparently with- 

 out diagnosis, a fact overlooked or ignored by Gill when he later 

 proposed Colocopus. 



PARACANTHURUS THEUTHIS (Lacepede) 



Acanthvrus theuthis Lacepede, Hist. Nat. Poiss., vol. 4, 1802, pp. 547, 549. 

 Amboina (on Linnaeus; not Carolina.^ Te/uthis hepatus Linnaeus). 



Acanthurus teuthis Shaw, Gen. Zool., vol. 4, 1803, p. 377 (Indian [not Amer- 

 ican] Seas). — Weber. Siboga Exp., vol. 57, Fische, 1913, p. 318 (Banda). 



Teuthis hepatus (part) Linnaeus, Syst. Nat., ed. 12, vol. 1, 1766, p. 507 

 (Amboina).— Gmelin, Syst. Nat. Linn., vol. 1, pt. 3, 1789, p. 1362.— Wal- 

 BAUM, Arted. Pise, vol. 3, 1792. p. 622. — Forster, Fauna Indica, 1795> 

 p. 16. 



Acanthurus hepatus Schneider, Syst. Ichth. Bloch, 1801, p. 211 (Japan [not 

 Bahamas]). — Valenciennes, Hist. Nat. Poiss., vol. 10, 1835, p. 183, pi. 

 288 (Mauritius; New Guinea). — Bleeker, Nat. Tijds. Nederland. Indie, 

 vol. 6, 1854, p. (313) 325 (Larantuka, Floris Island); voL 20, 1859-60, p. 

 198 (Priaman); Act. Soc. Sci. Ind. N^erland., vol. 1, No. 3, 185G, p. 8 

 (Macassar); vol. 2, No. 7, 1857, p. 5 (Amboina); vol. 8 (Sumatra), 1859, 

 p. 14 (Priaman).— GuNTHER, Cat. Fish. Brit. Mus., voL 3 1861. p. 341 

 (Amboina); Journ. Mus. Godeflfroy, vol. 4, 1875, p. 115, pi. 75 (Kings- 

 mills). ^Peters, Monatsber. Akad. Wiss. Berlin, 1876, p. 439 (Mauri- 

 tius). — Day, Fishes of India, pt. 2, 1876, p. 206. — Gunther, Rep. Voy. 

 Challenger, vol. 1, pt. 6, 1880, p. 52 (Zamboanga).— Meyer, An. Soc. 

 Espanola, Hist. Nat. Madrid, vol. 14, 1885, p. 24 (Manado, Celebes).— 

 Day, Fauna Brit. India, vol. 2, 1889, p. 143. — Ishikawa and Matsuura, 

 Prelim. Cat. Fish. Mus. Tokyo, 1897, p. 34 (Mauritius). 



Colocoptis lambdurus Gill, Proc. U. S. Nat. Mus., vol. 7, 1884 (1885), p. 279 

 (on GtJNTHER 1875). 



Paracanthurus lambdurus Herre, Philippine Journ. Sci., vol. 34, No. 4, Dec. 

 1927, p. 435, pi. 13, fig. 3 (Elefante, Simara, Tablas, Jolo). 



Depth 1^ to 21^; head 334 to 3^, width 2 to 2}4. Snout IV^ to 

 1^; eye 2% to 4^, 1% to 3J4 in snout, 1 to l}4 in interorbital ; 

 teeth 12 to 14 in each jaw; maxillary 4 to 4}4 in head; interorbital 

 3 to 3^5, convex. Gill rakers 3 + 7, short, firm, broad points. 



Scales very finely scabrous, compact, enlarged about preorbital 

 and around and before caudal spine. 



