The serial sections of the statocysts of the four kinds of the phylum mollusca, class cephalopoda, order decapoda, were observed with the 10% formalin diluted with seawater as soon as possible after being fished with a line. They were dehydrated with etylalcohol diluted with distiled water and seawater, then embedded in celloidin. The sections were cut 30μm and stained with hematoxylin and eosin.
As a result of this method, the macula statica, crista statica, processes, statolith, macula and crista nerves were observed.
