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概要

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Acanthogobius flarimanus (T. et S.) is one of the most common and important gobies which is found very abundantly in all coastal areas of Japan. It is also very familiar to the nation as a popular game fish as well as a delicious food fish. But little is as yet known of its life-history and habits and no one, so far as I am aware, has ever given a scientific description concerning this point. It seems, therefore, worth while to put on record the details of my recent observations, which were made at Kanazawa Laboratory from 1938 up to 1940. The present communication embodies the following sections; 1) distribution, 2) annual yield, 3) habitats, 4) fishing methods and season, 5) food and feeding habit, 6) spawning season and habit, 7) secondary sexual charactors, 8) seasonal cycle in the gonad, 9) number of matured ovarian eggs, 10) young with reference to those of other gobies, 11) relation between body-weight and length, 12) scale, 13) age, 14) growth, 15) maturation, 16) stock, 17) sex-propor-tions, 18) seasonal change of activity concluded from long-line fishery experiments, and 19) diseases.