Epithelial sensory structures of trochids

The ciliated epithelial sensory cells of the tentacle papillae and of the concave epipodial sense organ (e.s.o.) surface of the trochids Margaretes helicinus, Gibbula cineraria, G. umbilicalis, Monodonta lineata, Diloma nigerrima and D. zealandica are primary sensory cells with intra-epithelial nuclei. The 5–7 cells of a single papilla bear many cilia. Each e.s.o. cell has one cilium surrounded by 8–9 specialized microvilli. Both kinds of sensory cell show structural similarities with known mechanoreceptors.

[1]  J. C. Kinnamon,et al.  A second sensory—motor—interneuron with neurosecretory granules inHydra , 1978, Journal of neurocytology.

[2]  P. Tardent,et al.  Ultrastructure of mechanoreceptors of the polyp coryne pintneri (Hydrozoa, Athecata). , 1972, Experimental cell research.

[3]  M. Crisp.  Structure and Abundance of Receptors of the Unspecialized External Epithelium of Nassarius Reticulatus [Gastropoda, Prosobranchia] , 1971, Journal of the Marine Biological Association of the United Kingdom.

[4]  E. Reisinger.  Zur Problematik der Evolution der Coelomaten1 , 1970 .

[5]  K. G. Wingstrand,et al.  On the Occurrence and Structure of Choanocyte-like Cells in Some Echinoderms , 1970 .

[6]  J. Cobb.  The fine structure of the pedicellariae of Echinus esculentus (L.): II. The sensory system , 1968 .

[7]  G. Horridge,et al.  Prey detection by Chaetognatha via a vibration sense , 1967, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[8]  C. Rowell.  A general method for silvering invertebrate central nervous systems , 1963 .

[9]  G. Owen.  A New Method for Staining Connective Tissue Fibres, with a Note on Liang's Method for Nerve-fibres , 1959 .

[10]  W. Flemming.  Ueber Organe vom Bau der Geschmacksknospen an den Tastern verschiedener Mollusken , 1883 .

[11]  P. Mill.  Structure and Function of Proprioceptors in the Invertebrates , 1976 .

[12]  D. J. Peteya.  The ciliary-cone sensory cell of anemones and cerianthids. , 1975, Tissue & cell.

[13]  P. Mill,et al.  The fine structure of ciliated sensory cells in the epidermis of the earthworm Lumbricus terrestris. , 1971, Tissue & cell.

[14]  V. Storch,et al.  [The fine structure of the integument of priapulids and sipunculids--Priapulus caudatus, Phascolion strombi Montagu]. , 1970, Zeitschrift fur Zellforschung und mikroskopische Anatomie.

[15]  G A Horridge,et al.  Statocysts of medusae and evolution of stereocilia. , 1969, Tissue & cell.

[16]  J. Geuze.  Observations On the Function and the Structure of the Statocysts of Lymnaea Stagnalis (L.) , 1967 .