Observations of the Statocyst of the Cephalopoda

Abstract

The serial sections of the statocysts of the four kinds of the decapoda and two kinds of the decapoda, were observed with the 10% folmalin diluted with seawater as soon as possible after fishing with a line. They were dehydrated with ethylalcohol diluted with distiled water and seawater, then embedded in celloidin. The sections were cut 30 μm and staind with hematoxylin and eosin.
As a result, we could get good specimen of the macula statica, crista statica, processes, statolith, macula, crista nerves and membranous wall.