The Structure and Mode of Life of the Pyramidellidae, Parasitic Opisthobranchs
- 1 October 1949
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of the Marine Biological Association of the United Kingdom
- Vol. 28 (2) , 493-532
- https://doi.org/10.1017/s0025315400023377
Abstract
The family Pyramidellidae contains a number of species of gastropod molluscs of similar structure and mode of life.The shell is calcareous and spirally wound and may be closed by an operculum. The foot bears a transverse fold anteriorly, the mentum (Fig. 1, MT), separating the opening of the penial sheath (PO) below from the mouth (M) above. It has a lateral glandular streak on each side (Fig. 2), presumably sensory.The head has ear-shaped tentacles (Fig. 1, T), richly innervated and with cilia setting up a strong water current, so that they constitute a powerful sensory mechanism. The eyes (E) lie between the tentacles.This publication has 15 references indexed in Scilit:
- Reproduction and Larval Development of Danish Marine Bottom Invertebrates, with Special Reference to the Planktonic Larvae in the Sound (Öresund)Oikos, 1950
- Feeding and Reproduction in the PyramidellidsNature, 1949
- XXVII.—The Molluscan StomachTransactions of the Royal Society of Edinburgh, 1949
- A Snail Commensal with the Soft-shell ClamJournal of the Fisheries Research Board of Canada, 1948
- Studies in the Functional Morphology and Embryology of Onchidella Celtica (Forbes and Hanley) and their Bearing on its RelationshipsJournal of the Marine Biological Association of the United Kingdom, 1941
- On the Structure of the Gut of the Ascoglossan Nudibranchs.Journal of Zoology, 1940
- THE ALIMENTARY CANAL OF STYLE‐BEARING PROSOBRANCHS: 5. On the Structure of the Alimentary Canal of Style‐bearing ProsobranchsJournal of Zoology, 1939
- XXII.—The Structure and Function of the Alimentary Canal of some Tectibranch Molluscs, with a Note on ExcretionTransactions of the Royal Society of Edinburgh, 1937
- The Eggs and Early Larvæ of Two Commensal Gastropods, Stilifer stylifer and Odostomia eulimoidesJournal of the Marine Biological Association of the United Kingdom, 1932
- X.—On the Structure and Function of the Alimentary Canal of the LimpetTransactions of the Royal Society of Edinburgh, 1932