Bivalvia - Cardiida - Veneridae

Alternative combination: Mactra colchaguana

Belongs to Pitar according to M. Griffin and S. N. Nielsen 2008

Sister taxa: Meretrix (Pitar) dalikiensis, Pitar (Calpitaria), Pitar (Chionella), Pitar (Cordiopsis), Pitar (Costellipitar), Pitar (Hyphantosoma), Pitar (Lamelliconcha), Pitar (Nanopitar), Pitar (Paradione), Pitar (Pitar), Pitar (Pitar) nuttali, Pitar (Pitarenus), Pitar (Pitarina), Pitar albidus, Pitar baylii, Pitar cedroensis, Pitar cordatus, Pitar mancorensis, Pitar morrhuanus, Pitar petropolitanus, Pitar porrecta, Pitar rostratus, Pitar salanga, Pitar sciaena, Pitar securiformis, Pitar simpsoni, Pitar sorachiensis, Cytherea (Caryatis) pratti

Type specimen: MNHN-Gg2002/82, a shell

Ecology: facultatively mobile infaunal suspension feeder