277. Mactra marplatensis Doello –Jurado, 1949

Bathymetric distribution: 0–30 m —SW.

Geographical distribution: Brazil (RJ) to Argentina (Puerto Quequen)—B/A.

Remarks: Signorelli (2019) refers to this species as Spisula (Spisula) marplatensis .

References: Rios (1985, 1994), Signorelli & Pastorino (2012b), Signorelli (2019).