Bivalves of superfamily Galeommatoidea (Mollusca, Bivalvia) from western South Africa, with observations on commensal relationships and habitats.

The Galeommatoidea are a diverse but little-studied group of small bivalves, well known for the symbiotic relationships many species have with a range of invertebrate taxa. Four species collected from the Western Cape region of South Africa were examined and illustrated, providing new details on the...

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Bibliographic Details
Published in:ZooKeys
Main Authors: Valentich-Scott, Paul, Griffiths, Charles, Landschoff, Jannes, Li, Ruiqi, Li, Jingchun
Format: Article in Journal/Newspaper
Language:English
Published: PubMed Central 2024
Subjects:
Biodiversity
South Atlantic Ocean
Spatagobrissusmirabilis
Spatanguscapensis
commensalism
heart urchin
symbiosis
taxonomy
Online Access:https://doi.org/10.3897/zookeys.1207.124517
https://pubmed.ncbi.nlm.nih.gov/39081541
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11287081/
Description
Summary:The Galeommatoidea are a diverse but little-studied group of small bivalves, well known for the symbiotic relationships many species have with a range of invertebrate taxa. Four species collected from the Western Cape region of South Africa were examined and illustrated, providing new details on their habitat preferences, and depicting the mantle structure of live specimens for the first time. Brachiomyaducentiunus sp. nov., is described herein, and an additional record of Montacutasubstriata (Montagu, 1808) is reported from South Africa. Brachiomyaducentiunus and Montacutasubstriata have obligate symbiotic relationships with different burrowing echinoids, while Kelliabecki (WH Turton, 1932) and Melliteryxmactroides (Hanley, 1857) are free-living. DNA data and phylogenetic analyses are provided for three of the species.

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