419. Diplodonta portesiana (d´Orbigny, 1846) ★

Bathymetric distribution: 0–68 m —SW.

Geographical distribution: Costa Rica to Brazil (SC)—C/B.

Remarks: D. nucleiformis (W. Wagner, 1840) is recorded from Brazil (e.g., Rios, 1994, 2009; Barroso et al. 2013a), but considered as a synonym of D. portesiana by Romera et al. (2013).

References: Orbigny (1846), Romera et al. (2013).