462 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.39. 



11. PRISTIPOMOIDES SIEBOLDII (Bleeker). 



Chmtopterus Temminck and Schlegel, Fauna Japonica, 1843, p. 78, pi. 37, fig. 2 

 (Nagasaki). 



Chsetopterus sieboldii Bleeker, Nalez. Ich. Japan, 1857, p. 20, no. 146 (after Tem- 

 minck and Schlegel). — Regan, Ann. Mag. Nat. Hist., ser. 7, vol. 16, 1905, p. 

 18 (Inland Sea of Japan). 



Aprion sieboldii Bleeker, Enum. Especes Poiss. du Japon, Acad. Roy. Neer. Sci., 

 p. 7, 1879 {Aprion sieboldii Bleeker = Chsetopterus sieboldii Bleeker). — ^Jordan 

 and Snyder, Check List, Ann. Zool. Jap., vol. 3, pts. 2 and 3, 1901, p. 76 

 (Nagasaki, after Temminck and Schlegel). 



Chsetopterus dubius Gunther, Cat. Fish. Brit. Mus., vol. 1, 1859, p. 385 (after Tem- 

 minck and Schlegel). — Jordan and Snyder, Bull. U. S. Bur. Fish., vol. 26, 

 1906, p. 213 (Honolulu, Fukaura, Japan). — ^Jordan and Seale, Bull. U. S. 

 Bur. Fish., vol. 25, 1905, p. 269. 



Aprion microdon Steindachner, Ichth. Beitr., vol. 5, 1876, p. 158 (Hawaii). 



Boversia ulaula Jordan and Evermann, Bull. U. S. Fish. Comm., vol. 23, 1903, 

 p. 238, fig. 98 (Hilo, Hawaii). 



Hahitat. — Southern Japan; Hawaii. 



This species is apparently rare in Japan. Jordan and Snyder 

 obtained one example from Fukaura. This was compared carefully 

 with the types of Bowersia ulaula from Hawaii, and no specific differ- 

 ences were noted.'* This specimen from Fukaura has been mislaid, 

 and at present we have only Hawaiian examples for comparison. 

 These are cotypes of Bowersia ulaula. 



Regan described a specimen from the Inland Sea of Japan, 230 mm. 

 in length. The following is the substance of his account: 



Head 3| in length; depth 2|; eye 3 J in head; interorbital width 

 2§; snout shorter than eye; D. X, 10; A. Ill, 8; scales in longitudinal 

 series 72, in transverse 8/19. Gill rakers x + 20. 



Body ovate, moderately compressed; mouth oblique; jaws equal 

 anteriorly; maxillary exposed, without supplemental bone, extending 

 to below anterior one-fourth of eye ; width of its distal extremity two- 

 fifths diameter of eye ; premaxillaries protractile ; preorbital narrow. 

 Small villiform bands of teeth in jaws, vomer, and palatines; both 

 jaws with a moderately enlarged outer series of teeth and with 2 or 3 

 moderate canines on each side anteriorly. Preopercle rounded and 

 slightly produced at angle, with radiating ridges and crenulate mar- 

 gin; operculum mth two spines. Pseudobranchise well developed; 

 gill rakers as long as gill fringes. 



Dorsal spines increasing in length to fourth, which is nearly one- 

 half length of head, the last a little more than one- third length of head. 

 Pectoral falcate, with 17 rays, longer than head, extending to above 

 origin of anal. Ventrals commencing a little behind pectorals, 

 extending to vent. Caudal deeply forked. 



Lateral line concurrent with dorsal profile ; scales lacking on inter- 

 orbital region, snout, jaws, suborbitals, and preopercle; rest of head 



a Bull. U. S. Bur. Fish., vol. 23, p. 213. 



