Pholadidea

Pholadidea is a taxonomic genus of marine bivalve molluscs in the family Pholadidae (the piddocks). Most members of Pholididea bore into shale, soft rock and coral for shelter, with the exception of Pholididea (Hatasia) wiffenae, which is a wood-borer.[1]

Pholadidea
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Heterodonta
Order: Myida
Superfamily: Pholadoidea
Family: Pholadidae
Genus: Pholadidea
Turton, 1819
Type species
Pholadidea loscombiana
Turton, 1819[1]
Species

See text.

Synonyms[2]
  • Cadmusia Leach in Gray, 1852
  • Pholameria Conrad, 1865
  • Talonella Gray, 1851

Appearance

The Pholididea are distinguished from the other genera in Martesiinae by having only on umbonal-ventral sulcus, a longitudinally-divided mesoplax, and either no metaplax and hypoplax, or a single plate caused by deposition of calcite in the periostratum.[1]

Occurrence

Pholididea is known from the Eocene to the Holocene, while the subgenus P. (Hatasia) is known only from the Holocene.[1] Species have been reported from the Palaeocene and Late Cretaceous, but these likely belong in other genera.[1]

Taxonomy

The following taxonomic classifications exist in Pholididea:[1][2]

Subgenera
  • Pholadidea (Pholadidea) Turton, 1819
  • Pholadidea (Hatasia) Gray, 1851

Species
  • Pholadidea acherontea Beu & Climo, 1974
  • Pholadidea esmeraldensis Olsson, 1961
  • Pholadidea fauroti Jousseaume, 1888
  • Pholadidea loscombiana Turton, 1819
  • Pholadidea melanura .B. Sowerby I, 1834
  • Pholadidea quadra G.B. Sowerby I, 1834
  • Pholadidea suteri Lamy, 1926
  • Pholadidea tridens Gray, 1843
  • Pholadidea tubifera G.B. Sowerby I, 1834
Synonyms
  • Pholadidea acutithyra Tchang, Tsi & Li, 1960 accepted as Penitella acutithyra Tchang, Tsi & Li, 1960
  • Pholadidea cheveyi Lamy, 1927 accepted as Aspidopholas ovum W. Wood, 1828
  • Pholadidea chishimana Habe, 1955 accepted as Penitella gabbii Tryon, 1863
  • Pholadidea dolichothyra Tchang, Tsi & Li, 1960 accepted as Penitella dolichothyra Tchang, Tsi & Li, 1960
  • Pholadidea minuscula Dall, 1908 accepted as Martesia fragilis Verrill & Bush, 1898
  • Pholadidea sagitta Dall, 1916 accepted as Penitella penita Conrad, 1837

References
  1. Crampton, James S. (1990). "A New Species of Late-Cretaceous Wood-boring Bivalve from New Zealand" (PDF). Palaeontology. 33 (4): 981–992.
  2. Gofas, Serge; Bastien Tran; Phillipe Bouchet (2004–2011). "Pholadidea Turton, 1819". WoRMS. World Register of Marine Species.
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