WoRMS taxon details
Mesodesma arctatum (Conrad, 1831)
156805 (urn:lsid:marinespecies.org:taxname:156805)
accepted
Species
Ceronia arctata (Conrad, 1831) · unaccepted > superseded combination
Mactra arctata Conrad, 1831 · unaccepted > superseded combination
marine
(of Mactra arctata Conrad, 1831) Conrad, T. A. (1831). Description of fifteen new species of Recent, and three of fossil shells, chiefly from the coast of the United States. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 6(2): 256-268, plate 11., available online at http://biodiversitylibrary.org/page/24677674 [details]
Distribution Gulf of St. Lawrence (unspecified region), Saguenay Fjord, northern Gaspe waters, southern Gaspe waters (Baie des Chaleurs,...
Etymology 'Artic wedgeclam' is NOT a correct vernacular. "arctatum" refers to "compressed" in latin and is not an arctic species.
Distribution Gulf of St. Lawrence (unspecified region), Saguenay Fjord, northern Gaspe waters, southern Gaspe waters (Baie des Chaleurs, Gaspe Bay to American, Orphan and Bradelle banks; eastern boundary: Eastern Bradelle Valley), Magdalen Islands (from eastern Bradelle valley to the west, as far as Cape North, including the Cape Breton Channel), Prince Edward Island (from the northern tip of Miscou Island, N.B. to Cape Breton Island south of Cheticamp, including the Northumberland Strait and Georges Bay to the Canso Strait causeway), upstream and downstream part of middle St. Lawrence estuary, lower St. Lawrence estuary, upper North Shore (between Sept- Iles and Pointe des Monts), middle North Shore (from Sept- Iles to Cape Whittle, including the Mingan Islands), South slope of Anticosti Island; western slope of Newfoundland, including the southern part of the Strait of Belle Isle but excluding the upper 50m in the area southwest of Newfoundland [details]
Etymology 'Artic wedgeclam' is NOT a correct vernacular. "arctatum" refers to "compressed" in latin and is not an arctic species.
Etymology 'Artic wedgeclam' is NOT a correct vernacular. "arctatum" refers to "compressed" in latin and is not an arctic species. [details]
MolluscaBase eds. (2025). MolluscaBase. Mesodesma arctatum (Conrad, 1831). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=156805 on 2025-03-30
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
original description
(of Mactra arctata Conrad, 1831) Conrad, T. A. (1831). Description of fifteen new species of Recent, and three of fossil shells, chiefly from the coast of the United States. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 6(2): 256-268, plate 11., available online at http://biodiversitylibrary.org/page/24677674 [details]
basis of record Brunel, P., L. Bosse & G. Lamarche. (1998). Catalogue of the marine invertebrates of the estuary and Gulf of St. Lawrence. <em>Canadian Special Publication of Fisheries and Aquatic Sciences, 126.</em> 405 pp. (look up in IMIS) [details] Available for editors
[request]
basis of record Brunel, P., L. Bosse & G. Lamarche. (1998). Catalogue of the marine invertebrates of the estuary and Gulf of St. Lawrence. <em>Canadian Special Publication of Fisheries and Aquatic Sciences, 126.</em> 405 pp. (look up in IMIS) [details] Available for editors
[request]Other
additional source
Huber, M. (2010). <i>Compendium of bivalves. A full-color guide to 3,300 of the world's marine bivalves. A status on Bivalvia after 250 years of research</i>. Hackenheim: ConchBooks. 901 pp., 1 CD-ROM. (look up in IMIS) [details]
additional source Davis, J. D. (1966). <i>Mesodesma arctatum</i>: fossil and living specimens on Nantucket. <em>The Nautilus.</em> 80(1): 1-3., available online at https://www.biodiversitylibrary.org/page/8518608 [details]
additional source Merrill, A. S., Davis, J. D. & Emery, K. O. (1978). The latitudinal and bathymetric ranges of living and fossil <i>Mesodesma arctatum</i> (Bivalvia) with notes on habits and habitat requirements. <em>The Nautilus.</em> 92(3): 108-112, fig. 1., available online at https://www.biodiversitylibrary.org/page/8274052 [details]
subsequent type designation Davis, J. D. (1964). Lectotype designation for <i>Mesodesma arctatum</i>. <em>The Nautilus.</em> 78(1): 3-6, pl. 2., available online at https://www.biodiversitylibrary.org/page/8521298 [details]
additional source Davis, J. D. (1966). <i>Mesodesma arctatum</i>: fossil and living specimens on Nantucket. <em>The Nautilus.</em> 80(1): 1-3., available online at https://www.biodiversitylibrary.org/page/8518608 [details]
additional source Merrill, A. S., Davis, J. D. & Emery, K. O. (1978). The latitudinal and bathymetric ranges of living and fossil <i>Mesodesma arctatum</i> (Bivalvia) with notes on habits and habitat requirements. <em>The Nautilus.</em> 92(3): 108-112, fig. 1., available online at https://www.biodiversitylibrary.org/page/8274052 [details]
subsequent type designation Davis, J. D. (1964). Lectotype designation for <i>Mesodesma arctatum</i>. <em>The Nautilus.</em> 78(1): 3-6, pl. 2., available online at https://www.biodiversitylibrary.org/page/8521298 [details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
Unreviewed
Dimensions reaches 3 cm in size [details]Distribution Gulf of St. Lawrence (unspecified region), Saguenay Fjord, northern Gaspe waters, southern Gaspe waters (Baie des Chaleurs, Gaspe Bay to American, Orphan and Bradelle banks; eastern boundary: Eastern Bradelle Valley), Magdalen Islands (from eastern Bradelle valley to the west, as far as Cape North, including the Cape Breton Channel), Prince Edward Island (from the northern tip of Miscou Island, N.B. to Cape Breton Island south of Cheticamp, including the Northumberland Strait and Georges Bay to the Canso Strait causeway), upstream and downstream part of middle St. Lawrence estuary, lower St. Lawrence estuary, upper North Shore (between Sept- Iles and Pointe des Monts), middle North Shore (from Sept- Iles to Cape Whittle, including the Mingan Islands), South slope of Anticosti Island; western slope of Newfoundland, including the southern part of the Strait of Belle Isle but excluding the upper 50m in the area southwest of Newfoundland [details]
Etymology 'Artic wedgeclam' is NOT a correct vernacular. "arctatum" refers to "compressed" in latin and is not an arctic species. [details]
Habitat intertidal and infralittoral of the Gulf and estuary [details]
Reproduction separate sexes, usually not dimorphic in shell structure; fertilization occurs within the mantle cavity anf young hatch as pelagic larvae (generalized for group) [details]
To ANSP Malacology Collection (syntype of Mactra arctata. Conrad, 1830. Journal of the Academy of Natural Sciences of Philadelphia 6: 257, pl. 11, fig. 1 - catalog no. 51199) (from synonym Mactra arctata Conrad, 1831)
To Biodiversity Heritage Library (32 publications)
To Malacopics (Mesodesma arctatum (Conrad, 1831) United States, Massachusetts, Essex Co., Plum Isl...
To USNM Invertebrate Zoology Mollusca Collection
To Yale Peabody Museum of Natural History (YPM IZ 051990) (from synonym Ceronia arctata (Conrad, 1831))
To ITIS
To Biodiversity Heritage Library (32 publications)
To Malacopics (Mesodesma arctatum (Conrad, 1831) United States, Massachusetts, Essex Co., Plum Isl...
To USNM Invertebrate Zoology Mollusca Collection
To Yale Peabody Museum of Natural History (YPM IZ 051990) (from synonym Ceronia arctata (Conrad, 1831))
To ITIS
