FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 653 



Pellona ditclioa Valenciennes, Hist. Nat. Poiss., vol. 20, p. 313, 1847 (on Ditchoee 

 Russell).— GuNTHEE, Cat. Fishes British Mus., vol. 7, p. 4.55, 1868 (Java, 

 Zanzibar, East Africa). — Weber and BEAtrroKT, Fishes Indo-Australian 

 Archipelago, vol. 2, p. 88, 1913 (Batavia, Kendal Palabuan, Batu, Bagan Api 

 Api). — Chevey, Inst. Oceanogr. ludo-Chine, 19* note, p. 10, 1932 (Cochin- 

 china). — Hardenberg, Treubia, vol. 13, livr. 1, p. Ill, 1931 (Bagan Si Api 

 Api),— Herre, Fishes Herre Philippine Exped. 1931, p. 15, 1934 (La Paz).— 

 RoxAS and Martin, Dept. Agr. Comm. Manila Tech. Bull. 6, p. 19, 1937 

 (reference). — Sxjvatti, Index Fish. Siam, p. 10, 1937 (Gulf of Siam; 

 Sriracha). — Heeeb and Meyers, Raffles Mus. Bull., No. 13, p. 13, 1937 

 (Singapore). 



Depth 2% to 2% ; head 31/5 to 334, width to 2 to 21/2. Snout 31/2 to 

 414 in head from snout tip ; eye 2i/^ to 3, greater than snout or inter- 

 orbital, with adipose lids; maxillary reaches y^ in eye, with anterior 

 ligament along front edge, expansion 2 to 2^5 in eye, length 

 2 to 21/5 in head from snout tip; teeth obsolete or absent; 

 interorbital 5 to 6, little elevated, though slightly convex; sub- 

 orbitals with rather coarse branch of venules from preorbital 

 to postocular, few striae on preopercular flange below; opercle with 

 2 weak radiating striae. Gill rakers 12+22 to 24, slender, lanceolate, 

 2% in eye ; gill filaments % gill rakers. 



Scales 38 to 40 in median lateral series to caudal base and 4 more 

 on latter; 13 transversely, 14 to 16 predorsal. Abdominal scutes 18 

 to 20+9 or 10. Scales firmly adherent, narrowly imbricated. Scales 

 with 6 to 10 vertical evenly spaced parallel striae, half of which may 

 be broken or incomplete medially; 23 to 25 marginal apical striae; 

 circuli fine, vertically parallel, 



D, III, 10 to III, 13 ?, first branched ray ly^ to 1% in total head 

 length; A. 11, 34 to iii, 36, first branched ray 2% to 3; caudal 1, 

 strongly forked, slender lobes pointed; least depth of caudal pe- 

 duncle 21/3 to 31/10 ; pectoral I14 to 13^ ventral I34 to 41/5. 



Back pale brown to olivaceous, with median pale dusky streak, 

 sides and below bright silvery white. Iris white. Dorsal and caudal 

 dusted with gray, other fins pale or whitish. 



East Africa, Zanzibar, India, Malay Peninsula, East Indies, China. 



U.S.N.M, No. 72510. Batavia, Jav^a. Bryant and Palmer. 1909. Length, 98-115 



mm. 5 examples. 

 U.S.N.M. No. 72511, Batavia, Java, Bryant and Palmer, 1909, Length, 153- 



173 mm. 2 examples. 

 2 examples. A.N.S.P. Calicut, India. James Hornell, Length, 93-110 mm. 

 1 example. A.N.S.P. Bombay, India. Bombay Nat, Hist, Soc. Length, 250 mm. 



ILISHA BRACHYSOMA (Bleeker) 



Pellona hrachysoma Bleekeb, Verb. Batav. Genootsch. (Haring.), vol. 24, p. 

 22, 1852 (type locality: Batavia, Java). — GCnther, Cat. Fishes British Mus., 

 vol, 7, p. 456, 1868 (type).— Day, Fishes of India, pt. 4, p. 645, pi. 165. 

 fig. 2, 3878; Fauna British India, Fishes, vol. 1, p. 382, 1889.— Weber and 

 Beaufort, Fishes Indo-Australian Archipelago, vol, 2, p. 87, 1913 (com- 



