Red-Brown Ark
Barbatia domingensis (Lamarck, 1819)
As identified by photos online, I have a dozen of these arks. There seems to be some discussion of the genus (see remarks below, also for an alternate name see Barbatia cancellaria) as found online. The shells I have are dark brown (1-2")with a light are that extends from the umbo to the bottom. For a good example see also Florida's Living Beaches p. 114.
Red-Brown Arks from my collection (S. Hutchinson Island, December 2020)
Harry Lee: * Huber (2015, p.367-368) determined that the type material of Arca domingensis Lamarck, 1819 represents the species that had been usually treated as Barbatia cancellaria (Lamarck, 1819) in the literature. He argued that because Arca cancellaria Lamarck, 1819 does not have a type locality and bears doubtful type material, use of Arca domingensis is preferred, even though it upsets prevailing usage. Moreover, the correct name for the large, whitish, Caribbean species of Acar that had been previously identified as Acar domingensis (Lamarck, 1819) is currently unresolved.
Huber, M., 2015. Compendium of Bivalves 2. A Full-Color Guide to the Remaining Seven Families. A Systematic Listing of 8'500 Bivalve Species and 10'500 Synonyms. ConchBooks, Hackenheim, Germany. 907 pp., incl. numerous color figs + CD-ROM. May. [vidi]
Malaquias M.A. and D.G. Reid, 2008. Systematic revision of the living species of Bullidae (Mollusca: Gastropoda: Cephalaspidea), with a molecular phylogenetic analysis. Zoological Journal of the Linnean Society 153: 453-543. [vidi]
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Barbatia domingensis (Lamarck, 1819), Red-brown Ark.
From: https://olram9.wixsite.com/letstalkseashells/copy-of-bivalve-template-4
In 2012 I presented this shell as Barbatia cancellaria (Lamarck, 1819). A discussion followed with Bob Fales and Susan Hewitt regarding comments by Huber (2015, p.367-368) that, based on Lamarck's type material Barbatia domingensis (Lamarck, 1819) is the correct name for what was commonly presented in publications as B. cancellaria (Lamarck, 1819) (see Abbott #4966) and that the correct name for the species previously known as B. domingensis is not yet clarified. Huber presented this position upon the basis that the type material for B. domingensis best conforms to Lamarck’s description of B. cancellaria and Lamarck’s treatment of B. cancellaria lacks a type locality and bears doubtful type material. The result is that the shell presented in publications prior to Huber (2015) as B. domingensis is unclear and the name B. domingensis should be applied to shells previously described as B. cancellaria. The below presentation conforms to this position.
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Barbatia Gray, 1842
Orig. name
Arca domingensis Lamarck, 1819
Synonymised names
Acar domingensis (Lamarck, 1819) (see note under Barbatia domingensis)
Arca callifera Lamarck, 1819
Arca cancellaria Lamarck, 1819
Arca domingensis Lamarck, 1819
Arca listeri Philippi, 1849
Barbatia cancellaria (Lamarck, 1819)
Taxonomic remark Huber (2015, p.367-368) determined that the type material of Arca domingensis Lamarck, 1819 represents the species that had been usually treated as Barbatia cancellaria (Lamarck, 1819) in the literature. He argued that because Arca cancellaria Lamarck, 1819 does not have a type locality and bears doubtful type material, use of Arca domingensis is preferred, even though it upsets prevailing usage. Moreover, the correct name for the large, whitish, Caribbean species of Acar that had been previously identified as Acar domingensis (Lamarck, 1819) is currently unresolved.