Abstract
Supplementary observations on the cleaning behaviors of L. dimidiatus were studied in small tanks of the Suma Aquarium and in the open sea. 1) In this research also, as in the previous report, almost all the fishes having the same geographical and ecological distribution as L. dimidiatus displayed the requesting behavior to the wrasse. 2) Requesting behaviors were immediately shown by the fishes isolated from L. dimidiatus for more than two years and also by the young fishes which might not be encounter with the wrasse after hatching. 3) It may be concluded that requesting display of many rocky and coral reef fishes to L. dimidiatus has been now developed to a instinctive nature.
