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 figm-e). The purplish dye exuded by the animal 

 surruuuds it. 



Fi;/. 2. Lamellaria pcrspicim, L. Slightly enlarged. 



Fig. .3. Another specimen. About natural size. 



Fig. 4. The same, slightly contracted. Viewed from the under surface. 



Fi<j. o. A pale specimen of the same species. Slightly enlarged. 



Fig. ii. View of the under surface of the same. 



Fig. 7. Anterior view of another small specimen, showing the foot and 

 cloak. 



Figs. 8, 9 & 10. Figures showing the great variability of colour in this 

 species. 



Fig. 11. Lateral view of Lucenmria awicala, 0. Fabr., attached to a 

 piece of Fiicus 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 papilla; is 

 double ; and various urticating organs are scattered over the 

 bell. 



