254 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Premaxillary groove scaleless, nearly reaches opposite eye center. 

 Preorbital and maxillary naked. D. IX, 10, fin notched, second to 

 fourth spines subequal, last not % of third; A. Ill, 8, second spine 

 strong, larger than third. Pectoral very long. Length, 165 mm. 

 (Sauvage.) 

 Reunion, Madagascar, Malabar. 



Genus GERREOMORPHA AUeyne and Macleay 



Gerreomorpha Alleynb and Macleay, Proc. Linn. Soc. New South Wales, voL 

 1, p. 274, 1876. (Type, Gerreomorpha rosirata Alleynb and Macleay, 

 monotypic.) 



Distinguished from Gerres chiefly by the presence of 10 dorsal 

 spines. 



Several species in the western Pacific and Indian Oceans. 



ANALYSIS OF SPECIES 



a'. Cheek with 3 rows of scales. 



b^. Lower preopercle edge entire; tip of spinous dorsal black japonica. 



6*. Lower preopercle edge serrated on posterior half; upper edge of spinous 



dorsal narrowly black setifera 



o*. Cheek with more than 3 rows of scales; preopercle edge entire; tips of spin 

 ous dorsal and caudal black rostrata 



GERREOMORPHA JAPONICA (Bleeker) 



Gerres japonicus Bleeker, Nat. Tijds. Nederland. Indie, vol. 6, p. 404, 1854 

 (type locality: Nagasaki); Verh. Batav. Genootsch. (Japan), vol. 26, p. 93, 

 pi. 6, fig. 2, 1857 (Nagasaki); Act. Soc. Sci. Ind. N^erland. (No. 3), vol. 3, 

 p. 3 (Kioesio), p. 5 (Japan), 1857-1858. — GtJnthbb, Cat. Fish, Brit. Mas., 

 vol. 1, p. 351, 1859 (China); vol. 4, p. 260, 1862 (Amoy and China) .—Sau- 

 vage, Bull. Soc. Philom., Paris, ser. 7, vol. 5, p. 105, 1881 (Swatow, China). — 

 Nystrom, Bihang kon. Svensk. Vet. Akad. Handlingar, Stockholm, vol. 13, 

 No. 4, p. 12, 1887 (Nagasaki).— Elbra, Cat. Fauna Filip., vol. 1, p. 476, 1895 

 (Luzon, Cavite, Santa Cruz) . — Rutter, Proc. Acad. Nat. Sci. Philadelphia, 

 p. 76, 1897 (Swatow). — Izuka and Matsuura, Cat. Zool. Spec. Tokyo Mus. 

 Vertebr., p. 148, 1920 (Tateyama, Boshiu). 



Diapterus japonicus Bleeker, Nederland. Tijdschr. Dierk., vol. 2, p. 56, 1865 

 (Amoy). 



Eucinostomus japonicus Jordan and Snyder, Annot. Zool. Japon., vol. 3, p. 81, 

 1901 (Nagasaki). 



Xystaema japonicus Smith and Pope, Proc. U. S. Nat. Mus., vol. 31, p. 478, 1906 

 (Kochi, Urado). 



Gerreomorpha japonica Jordan, Proc. U. S. Nat. Mus., vol. 32, p. 247, fig. 2, 1907 

 (Nafa, Riu Kiu; Wakanoura). — Schmidt, Trans. Pacific Comm. Acad. Sci. 

 U. S. S. R., vol. 2, p. 71, 1931 (Nagasaki). 



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

 eye 2% to Z}i, greater than snout in young to subequal with age, 

 greater than interorbital in young to IK with age; maxillary reaches 

 Yi in eye, expansion 3 to 3K in eye, length 2% to 3 in head; interorbital 

 2% to 3, broadly convex. Gill rakers 6 + 7, short points, K of gill 

 filaments, which 2}3 in eye. 



