J. HOOD ON FLOSCULAKIA CUCULLATA. 337 



I have observed the three kinds of eggs in the hyaline tubes 

 of F. cucuUata, the ordinary female (parthenogenetic) summer 

 eggs, the male eggs, which are smaller and rounder, and the 

 winter or resting eggs, which are larger and denser, and fur- 

 nished with a double shell. 



I am greatly indebted to Mr. C, F. Rousselet for the draw- 

 ings from nature, both of the ventral and side views, illustrating 

 this paper. 



Length, total, -g? to 2V i^-5 of body alone yV^^- 



Habitat, Marsh pool near Blairgowrie, Perth. 



Explanation of Plate. 



Fig. 1. Floscularia cucullata, side view. 

 „ 2. ,, „ anterior part, front view. 



„ 3. „ „ the male. 



