T. Aida

The journal of the College of Science, Imperial University of Tokyo, Japan (東京帝國大學紀要. 理科) 23 pp. 1-25 , 1907-12-23

NCID:AA0069577 Reports that the most common appendicularian in Japan are O. longitudica, O. dioica and O. fusiformis. They are “found almost in all seasons and in every part of the coast”. Nevertheless, “even the most common species O. longitudica can not be taken at all times throughout the year”.