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Species discrimination in seven species of Barbatia (Bivalvia: Arcoidea) from Thailand with a redescription of B. grayana (Dunker, 1858)
García, A.A.; Oliver, G. (2008). Species discrimination in seven species of Barbatia (Bivalvia: Arcoidea) from Thailand with a redescription of B. grayana (Dunker, 1858). Raffles Bull. Zool. 2008(Supplement no. 18): 7-23
In: The Raffles Bulletin of Zoology. National University of Singapore: Singapore. ISSN 0217-2445, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • García, A.A.
  • Oliver, G.

Abstract
    Seven species belonging to the genus Barbatia were collected from the Kungkrabaen Bay region of southeastern Thailand: B. foliata (Forsskal, 1775), B. decussata (Sowerby, 1833). B. trapezina (Lamarck, 1819), B. grayana Dunker, 1867, B. fusca (Bruguiere, 1789), B. virescens (Reeve, 1844). and B. bistrigata (Dunker, 1866). Soft tissue colouration of the living animal is found to be a reliable taxonomic character and this is supported by the anatomical characters of the gut looping and anal papilla. Using anatomical characters to confirm shell characters allowed a review of the foliate/decucssata complex resulting in the recognition of three species: B. foliata, B. decussata and B. trapezina. A lectotype is selected for B. trapezina, Barbatia grayana is redescribed and a neotype is selected; it is considered not to be part of the foliate/decussata complex and most closely resembles B. multivillosa (Iredale, 1939). The nomenclature of all species is reviewed and the name B. fusca (Bruguiere) is retained in preference over B. amygdalumtostum (Roding, 1798). Barbatia signata (Dunker, 1868), although not found during the workshop, is described as it has been confused with both B. bistrigata and B. grayana.

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