CONSIDERATIONS ON THE SEGREGATION OF RIGHT AND LEFT HANDED TYPES IN PHYSALIA

Abstract

After the predominating occurrences of the right handed type in stranded Physalia physalis var. utriculus LA MARTINIERE on beaches near the Seto Marine Biological Laboratory were recorded (1969, pp. 183-185), some more observations have been made additionally in a hope to see any biological significance of the two types of Physalia, especially to see the possibility of segregation of right and left handed types by wind in the actual open sea areas. In making these observations, I owed much to Mr. H. TANASE, one of the curators of the laboratory aquarium, and Miss Mie TOKIOKA for their kind help and information. I want to express here my hearty thanks for their kindness.