Revision of the Magellanic Mactridae Lamarck, 1809 (Bivalvia: Heterodonta)

SIGNORELLI, J.; PASTORINO, G.

ZOOTAXA

MAGNOLIA PRESS

Lugar: Auckland ; Año: 2011 p. 47 - 67

1175-5326

The worldwide family Mactridae Lamarck, 1809, is well represented in the southwestern Atlantic Ocean. Literature researchrevealed 22 living nominal species linked to Magellanic forms. Within this context, a taxonomic revision of thespecies belonging to the family Mactridae that inhabit the Magellanic area was carried out. The analysis was done by usingmorphological characters of the shell and describing the mantle cavity organs. After extensive fieldwork from PeninsulaValdés to Tierra del Fuego province, seven valid living species were confirmed. Synonymies of those valid forms havebeen updated, as have their geographic distributions. Redescriptions of the species here considered as valid, i.e.: Mactrafuegiensis Smith, 1905, Mulinia bicolor Gray, 1837, Mulinia byronensis Gray, 1837, Mulinia edulis (King & Broderip,1832), Mulinia exalbida Gray, 1837, Mulinia levicardo (Smith 1881) and Darina solenoides (King & Broderip, 1832) areprovided.