Hypoconcha arcuata Stimpson, 1858

Material examined (N=2). 1m, 06–07/VI/2000 (MZUESC #636); 1m, 30/X/2004, St. 0 4 (MZUESC #674). Distribution. Western Atlantic – from North Carolina to Florida, Gulf of Mexico, Antilles, Guyanas, and Brazil (from Amapá to São Paulo) (Melo 1996).

Ecological notes. On sand and shell bottoms, from shallow waters to 80 m (Melo 1996). Previous records in Bahia. Joly et al. (1969), Gomes Corrêa (1972), Barreto et al. (1993).