276. Mactra isabelleana d´Orbigny, 1846

Bathymetric distribution: 0–25 m —SW.

Geographical distribution: Brazil (RJ) to Argentina (Río Negro Province)—B/A.

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

References: Cauqüoin (1967a), Rios (1994, 2009), Signorelli & Pastorino (2012b), Signorelli (2019).