191. Spondylus tenuis Schreibers, 1793

Bathymetric distribution: 0–51 m —SW.

Geographical distribution: USA (Florida) to Brazil (PA to SC; FN and Abrolhos)—C/B.

Remarks: This species is referred to as both S. erinaceus Reeve, 1856 and S. ictericus Reeve, 1856 (e.g., Rios 1994, 2009; Rocha et al. 2015).

References: Fischer–Piette et al. (1969), Rios (1994, 2009), Turgeon et al. (2009), Rocha et al. (2015).