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The fine morphology of the osphradial sense organs of the mollusca 1. gastropoda prosobranchia






Philosophical Transactions of the Royal Society of London B Biological Sciences 307(1133): 457-496

The fine morphology of the osphradial sense organs of the mollusca 1. gastropoda prosobranchia

The comparative ultrastructure of osphradia is investigated in 51 spp. of prosobranch gastropods, representative of nearly all superfamilies and of various habits and environments. The sensory epithelium of the osphradiuim as a whole may reflect environmental conditions, whereas the ultrastructure of osphradial cell types reflects actual taxonomic relations. Accordingly, the following taxa can be differentiated on the basis of osphradial fine structrure. The validity of the recently established taxon Vetigastropoda (Pleurotomarioidea, Fissurelloidea and Trochoidea) is confirmed. The Docoglossa appear as a very isolated group. The osphradia of the Neritopsina are similar to those of the Caenogastropoda with respect to the organization of the sensory epithelium, but differ in cell types. In Valvatoidea, the osphradium is indifferently elaborated, and no close relationship to other groups can be stated. The Viviparoidea possess a special type of osphradium distinct from that of other taenioglossan groups. Neotaneioglossa (= Mesogastropoda partly), Heteroglossa (Cerithiopsoidea, Triphoroidea, Epitonioidea, Eulimoidea) and Stenoglossa (= Neogastropoda) represent an (unnamed) monophyletic stock which is characterized by 3 special cell types with a constant mutual positional relationship within the osphradial epithelium. On the basis of its structure, the function of the osphradium is suggested to be chemoreceptive (also in Archaeogastropoda).


Accession: 006677300



Related references

Haszprunar, G., 1985: The fine morphology of the osphradial sense organs of the Mollusca. 1. Gastropoda, Prosobranchia. Philosophical Transactions of the Royal Society of London B Biological Sciences, 307: 457-496 No. 1133

Haszprunar, G., 1987: The fine morphology of the osphradial sense organs of the Mollusca. 4. Caudofoveata and solenogastres. Philosophical Transactions of the Royal Society of London B Biological Sciences, 3151169: 63-73

Haszprunar, G., 1986: The fine morphology of the osphradial sense organs of the mollusca iv. caudofoveata and solenogastres. The fine morphology of the osphradial (= dorsoterminal) sense organs of seven Caudofoveata and two Solenogastres [Scutopus ventrolineatus, S. robustus, Prochaetoderma raduliferum, Chaetoderma nitidulum, Falcidens crossotus, F. gutturosus, F. sagit...

Haszprunar, G., 1987: The fine morphology of the osphradial sense organs of the Mollusca. 3. Placophora and Bivalvia. Philosophical Transactions of the Royal Society of London B Biological Sciences, 3151169: 37-61

Haszprunar, G., 1986: The fine morphology of the osphradial sense organs of the mollusca iii. placophora and bivalvia. The fine morphology of the osphradia of six placophorans and eight bivalves, representing all major subgroups of both classes, is described. In addition, the branchial and lateral sense organs of Lepidopleurus cajetanus (Placophora) have been inve...

Haszprunar, G., 1985: The fine morphology of the osphradial sense organs of the Mollusca. 2. Allogastropoda (Architectonicidae, Pyramidellidae). Philosophical Transactions of the Royal Society of London B Biological Sciences, 307: 497-505 No. 1133

Haszprunar, G., 1984: The fine morphology of the osphradial sense organs of the mollusca 2. allogastropoda architectonicidae pyramidellidae. The fine structure of the osphradia of Architectonicidae and Pyramidellidae is described. In contrast to their different external shape, the sensory epithelium of the osphradium of both families is very similar, but entirely different from that of...

Teilor, D.D.; Kamardin, N.N., 1992: Evolution of receptor cells of chemosensory osphradial organs of caenogastropoda (Prosobranchia, Gastropoda). The sea water caenogastropoda molluscs possess lowered sensory cell (S. C.) kinocillia from the osphradium surface and under a thick microvilli layer of supporting cells, which makes in impossible to stimulate them mechanically with hard particles...

Fioroni, P., 1966: On the morphology and embryogenesis of the intestinal tract and transitory organs in Prosobranchia (Mollusca, Gastropoda). Revue Suisse de Zoologie; Annales de la Societe Zoologique Suisse et du Museum D'histoire Naturelle de Geneve 73(4): 621-876

Yildirim, M.; Zeki., 1999: The Prosobranchia Gastropoda Mollusca species of Turkey and their zoogeographic distribution 1 Fresh and brackish water Turkiye Prosobranchia Gastropoda Mollusca turleri ve zoocografik yayilislari 1 Tatli ve aci sular. Of the Prosobranchia species found in Turkey, 60 species and 12 subspecies were determined to be present in the study area according to our results and the results of foreign malacologists. The species and their genera are: 8 species, 2 subspecies...