After this threefold ray of conical pointed _papillæ_, there appears a body of a livid violet colour; I took it for a particular substance or body; but having examined it, I observed it was only a pellicle, or membrane, that covered a part of the _papillæ_ I mentioned. This membrane has sixteen separations, which form kinds of purses, and yet leave, in the center of the animal, an empty space, wherein several glands are brought in view. I do not know, whether, in the natural state, these membranes do not retire to the circumference, in order to discover the glands within, which they usually hide, and which fill up all the middle of the crown; but when the fleshy body is gone up again, it covers all the interior parts, closes them in, and preserves them from the touch of any extraneous body. I cannot tell how these fishes live, or what is their mechanism; for I could not distinguish either a mouth, or any _viscera_, nor any other organ serving to their nourishment. [Illustration: _Philos. Trans. Vol. L._ TAB. XXXIV. _p. 845_. Lepades Pedatæ. 1. _Lepas nuda carnosa aurita_ 1 a. _Ejusdem pars superior interna_ 1 b _Foramen auris internum_ 1 c _Currhi_ (1.d) _Proboscis et_ (1.c) _Os_ 1 f _Dens terratus quorum octo sunt_ 1 g. _Idem per. Microscopium visus_ 1 h. _Scapus longitudinatiter dessectus_ 2 _Scalpellum Norwegicum Keratophytium_ 2 a. _Idem per. Microscopium visum_ 3 _Scalpellum ex mare Britannico_ 4. _Cornu copia Poussepieda Gallorum_ 5. _Concha Anatifera vulgaris_ 6. _Concha Anatifera prolifera_ A. _Animal Lepadis sen Triton Linnæi_ Barnicles _with Stems_. 1. _Naked fleshy Barnicle with Ears_ 1 a. _The inside of the upper part of the same_ 1 b. _The internal opening of the Ear_ 1 c. _The Plumes_ (e. d) _trunck_ (e. e) _and mouth_ 1 f. _A saw edg’d tooth of which there are 8_ 1 g. _The same magnified_ 1 h. _The Stem cut in two lengthways_ 2. _The Norway Seafan Penknife._ 2 a. _The same magnified._ 3. _The British Channel Penknife._ 4. _The Horn of plenty or French Poussepieds_ 5. _The common Duckbearing Barnicle_ 6. _The branch’d Duckbearing Barnicle_ A. _Animal of the Barnicle or Linnaeus’s Triton_ Lepades Sessiles Balani dictæ. 7. _Pediculus Ceti_ (7.a). _Idem reversus_ 8. _Calyciformis Orientalis_ 9. _Tintinabuliformis._ 10. _Tulipiformis ex Corallio rubro_ 11. _Fistulosa conica_ (11.a) _eadem reversa_ 12. _Verrum Testudinaria_ (12.a) _eadem reversa_ 13. _Verrum Canesti Americani_ (13.a) _eisdem statere_ 14. _Lapensis ore obliquo_ (14.a) _cum opserastis cornutis_ 15. _Subovatis crassa ore minore_ 16. _Cornulacensis conicas ore minores_ 17. _Anglica vulgaris ore patulo_ 18. _Aretica Patelliformis_ 19. _Calceolus_ (19.a) _Idem. hierophylis involutus_ 20. _Diadema Persarum_ Barnicles _adhering by the base of these Shells_.