and southeast of the Indian Ocean. J. Shimonoseki 

 I'niv. Fish. 13(2): 133-140. |In Japanese with 

 English summary.] 



TsuRUTA, Saburo, and Sehchi Tsunoda. 



1960. Morphometrical characters and fishing condi- 

 tions of yellowfin tuna NeoUtmnius macroplerus in the 

 Indian Ocean. J. Shimonoeski Coll. Fish. 10(1): 

 1-34. |In Japane.se with English .summary.] 



Tucker, Denys W. 



1955. The long-finned tunny, Germo alalunga (Bonna- 

 terre), in British seas. Nature 175: 174. 



ViLELA, H., and Fernando Frade. 



1963. E.xpose synoptique sur la biologic du thon i 

 nageoires jaunes Neothunnus albacora (Lowe) 1839 

 (Atlantique oriental). FAO Fi.sh Rep. 6, 2: 900-930. 



ViLELA, H., and R. Monteiro. 



1959. Sobre atuns de Angola. Bol. Pesca, Portugal 

 64: 11-54. 

 W., S. D. [perhaps S. D. Wood], 



1837. The fishes (Pisces) of Britain, systematically 

 arranged. Analyst 5: 204-215. 

 Walb.U'm, Johann J. 



1792. Petri Artedi sueci genera piscium in quibus sys- 

 tema totum ichthyologiae proponitur cum classibus, 

 ordinibus, generum characteribus, specierum differen- 

 tiis, observationibus plurimis. Grypeswaldiae. 723 

 pp. 



Walford, Lionel A. 



1937. Marine game fishes of the Pacific coast from 

 Alaska to the equator. Univ. Calif. Press, Berkeley. 

 205 pp. 



Wathne, Frederick. 



1959. Summary report of exploratory long-line fishing 



for tuna in Gulf of Mexico and Caribbean Sea, 1954- 



1957. Com. Fish. Rev. 21(4): 1-26. 

 Watson, Marg.\ret E. 



1964. Tunas (genus Thunrxus) of the western North 

 Atlantic. Part 1. Key to the species of Thunnus 

 based on skeletal and visceral anatomy. Symposium 

 Scombroid Fishes, Mar. Biol. Assoc. India, ser. 1: 

 389-394. 



Whitley, Gilbert P. 



1933. Studies in ichthyology. No. 7. Rec. Australian 

 Mus. 19(1): 60-112. 



1936. More ichthyological miscellanea. ^lem. Queens- 

 land Mus. 11(1): 23-51. 



1955. Taxonomic notes on fishes. Proc. Roy. Zool. 

 Soc. New South Wales, 1953-54: 44-57. 

 Williams, Frank. 



1964. The scombroid fishes of east Africa. Sympo- 

 sium Scombroid Fishes, Mar. Biol. Assoc. India, ser. 1 : 

 107-164. 



Yabe, Hiroshi, Shoji L'eyanagi, Shoji Kikawa, and 

 Hisaya W.\tanabe. 



1958. Young tunas fouml in the stomach contents. 

 Rep. Nankai Reg. Fish. Res. Lab., (8): 31-48. |In 

 Japanese, translation by Sigeru Motoda, U.S. Bureau 

 of Commercial Fisheries, Hawaii Area Office, Hono- 

 lulu.] 



Yamanaka, Ha.iime, et al. 



1963. Synopsis of biological data on kuromaguro Thun- 

 nus orienlalis (Temminck and Schlegel) 1842 (Pacific 

 Ocean). FAO Fish. Rep. 6, 2: 180-217. 

 YosHiDA, Howard O. 



1965. New Pacific records of juvenile albacore Thunnus 

 alalunga (Bonnaterre) from stomach contents. Pa- 

 cific Sci. 19(4): 442-450. 

 Yoshida, Howard O., and Tamio Otsu. 



1963. Synopsis of biological data on albacore Thunnus 

 germo (Lacepede) 1800 (Pacific and Indian oceans). 

 FAO Fish Rep. 6, 2: 274-318. 



APPENDIX 



TON 



'■■■f-^.-i 



Figure A-1. — Lateral view of skulls of Thunnus species. 

 (top) T. atlanticus, skull length 88 mm. ; (middle) T. tong- 

 gol, 56 mm.; (bottom) T. tonggol, 122 mm. 



ANATOMY AND SYSTEMATICS OF TUNAS 



129 



