Contributions to the Comparative Study of the 

 So-called Scombroid Fishes. 



Kamakichi Kishiuouye. 



College o£ Agriculture. Tokyo Imperial University. 



"S^ith Platos Xm-XXXrS' md 26 Text-figiues. 



CONTENTS. 



Diagram showing a new scheme o£ classification of the scombroid fishes. 



Introductiou 2Ö5 



Comparntive anatomy 296 



External characters 296 



External form of the body 296 



Size 298 



CoIouTS and markings 238 



Head 301 



Lateral line 303 



f-kin and scales 305 



Fins 306 



Skeleton 309 



Skull 310 



Jaw bones 320 



Oi>ercuIar bones 323 



Hyoid arch 326 



Branchial arches 328 



Pectoral girdle 331 



Pelvic girdle 334 



Vertebral column 336 



Kibs and intermuscular bones . . 3 II 



Interspinous bones 343 



Muscular system 345 



Ligaments and tendons 350 



Nervous system and sense organs. . . . 351 



Abdominal cavity 353 



Air-bladder 354 



Digestive system 356 



Respiratory system 363 



Vascubir system 365 



Eenal organs 379 



Eeproduetive system 380 



Biology and ecology 381 



Hubit 381 



Food 383 



Development and growth 384 



Locomotion 388 



Migration 389 



Distribution 390 



Enemies and parasites 394 



Fishery 394 



Hook and line 396 



Dritt-net 398 



Seines 399 



Pound-nets 399 



Classification 400 



Teleostei 400 



Acauthopterygii 400 



Scombridse 400 



Cybiidae 407 



Plecostei 428 



Thunnidie 432 



Katsuwonida> 450 



Bibliography 465 



Explanation of plates 468 



Index to the vernacular names of scom- 

 broid fishes 472 



Index 473 



[Jour. Coll. Agric, Vol, VIII, Ko. 3] 



