Schroederichthys tenuis ^ZBK:

USNM 188052 (holotype), 230 mm TL immature male, off mouth of Amazon River, Brazil ; USNM 188053 (paratype), 180 mm TL immature male, off mouth of Amazon River, Brazil ; UERJ 1106.1, 407 mm TL mature male, coast of Amapa State (04°40'N, 050°03'W) ; UERJ 1106.2, 373 mm TL mature female, coast of Amapa State (04°40'N, 050°03'W) ; UFPB 1564, 372 mm TL mature female, coast of Amapa State (04°40'N, 050°03'W) ; CEPNOR uncatalogued (nine specimens), 455 mm TL mature male, 172 mm TL immature male, 217 mm TL immature female, 157 mm TL immature female, 442 mm TL mature male, 335 mm TL immature male, 473 mm TL mature male, 471 mm TL mature male, 440 mm TL mature female.