EXPLANATION OF PLATE X. 



Figs, i,ia. Mycale myiilorum^ sp. nov. 



I. — Spicules, X300 irt.— Anisochela, X 1800. 



Figs, 2, 2a. Mycale aegagropila var. militaris, var. nov. 

 2. — Spicules, X300. 2a. — Anisochela, X750. 



Figs. 3, 3a. Mycale madraspatana , sp. nov. 



3. — Spicules, X 300. 3a. — Anisochela, X 1350. 



Figs. 4, 4a. Lissodendoryx halanophilus, sp. nov, 



4. — Spicules, X 300. 4^. — Isanchora, X 1350, 



In figures i and 4 two of the chelae are represented on a larger 

 scale than the rest of the spicules. In figure 4 the drawing of the 

 S- shaped sigma has been blotted in reproduction. 



