BY T. HARVEY JOHNSTON AND B. BUCKLAND TAYLOR. 4i 
TEXT-FIGURES, 1-4. 
Text-figure 1.—Entire specimen of Spadella moretonensis, viewed from the 
ventral surface as a transparent object: sensory areas 
omitted. 
Text-figure 2.—Dorsal view to show arrangement of sensory areas on 
dorsal surface. To avoid confusion those on the ventral 
surface have been omitted. 
Text-figure 3.—Enlarged view of head and anterior portion of body ; 
ventral view, anatomy showing through. 
Text-figure 4.—Region of a female aperture (dorsal view). 
References to lettering :—C., collarette ; cor., corona; f.b., foreign 
body ?; 0., ovum; r.s., receptaculum seminis; t.s., tail septum; v.g., 
ventral ganglion ; v.s., vesicula seminalis. 
