Plate III. 
Fig. 1. Aplysia punctata , Cuv., in the contracted state. Somewhat 
reduced. The great muscular lobe (epipodium) of the right 
side has been folded downwards, so as to expose the shell (on 
the left in the figure). The purplish dye exuded by the animal 
surrounds it. 
Fig. 2. Lamellaria perspicua, L. Slightly enlarged. 
Fig. .3. Another specimen. About natural size. 
Fig. 4. The same, slightly contracted. Viewed from the under surface. 
Fig. 5. A pale specimen of the same species. Slightly enlarged. 
Fig. <i. View of the under surface of the same. 
Fig. 7. Anterior view of another small specimen, showing the foot and 
cloak. 
Figs. 8, 0 »fc 10. Figures showing the great variability of colour in this 
species. 
Fig. 11. Lateral view of Lucernaria auricula, O. Fabr., attached to a 
piece of Fucus serratus. Enlarged under a lens. The pale 
streak on the pedicle indicates one of the longitudinal muscles. 
Fig. 12. View of the same expanded, and seen from above. Similarly 
enlarged. Running inwards from each bundle of tentacles are 
the orange reproductive organs. One of the border papillae is 
double; and various urticating organs are scattei'ed over the 
bell. 
