Molluscan ResearchISSN 1323-5818
 An international journal of the Malacological Society of Australasia and 
the Society for the Study of Molluscan Diversity published by Magnolia Press

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Molluscan Research 30(2): 87-101; published 30 Jul. 2010
Copyright © The Malacological Society of Australasia & the Society for the Study of Molluscan Diversity

Comparative anatomy and taxonomy of Onchidium vaigiense 
(Gastropoda: Pulmonata: Onchidiidae)


School of Natural Sciences, University of California, 5200 North Lake Road, Merced, CA 95343, USA. Email:


The anatomy of the marine pulmonate slug Onchidium vaigiense Quoy and Gaimard, 1824, originally described from West Papua, Indonesia, is re-described here based on 44 specimens from 15 localities from the Philippines, Papua New Guinea, Indonesia and Singapore, many of which are new distribution records. Onchidium marmoratum Lesson, 1826, and Onchidium leopoldi Labbé, 1934, are regarded as new synonyms of Onchidium vaigiense. The anatomy of Onchidium vaigiense is compared with that of other species; its supra-specific relationships are discussed; and some important features in onchidiid systematics are discussed.

Key words: Alpha taxonomy, biodiversity, tropical Indo-West Pacific, nomenclature, Systellommatophora, systematic revision

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