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| FAMILY list (thumbnails) |
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| FAMILY list (names only) |
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| RISSOIDAE (geographic) |
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| RISSOIDAE (thumbnails) |
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| RISSOIDAE (thumb+maps) |
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| RISSOIDAE (names only) |
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| RISSOIDAE (no synonyms) |
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| RISSOIDAE (no variety) |
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Class: GASTROPODA
--- Taxon Tree: CAENOGASTROPODA [Subclass] - LITTORINIMORPHA [Order] - RISSOOIDEA [Superfamily]
------ Family: RISSOIDAE Gray, 1847 (Sea)
------------ Genus: Alvania A. Risso, 1826
| --------------- Species: Alvania tenuicostata (G. Seguenza, 1876) - ID: 5192000027 | |||||||
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------------------ Sub or form: Alvania tenuicostata spiralis F. Nordsieck, 1972 - ID: 5192000028 | |||||||
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Please email your image to: Claudio Galli - last updated: 28/ago/2017