Acanthonyx dissimulatus Coelho & Torres, 1993

Material examined. Penaeid—1 OF; CW = 4.45 mm; CZUFS CRU- 00234.

Station. Penaeid—9.

Distribution. Western Atlantic—Mexico, Quintana Roo, and Brazil (from Piauí to São Paulo) (Coelho & Torres 1993; Melo 1996; Dall’Occo et al. 2004; Tamburus & Mantelatto 2012).

Ecological notes. From shallow waters to 25 m. On hard substrates, sand bottoms or mostly associated with aquatic vegetation (Melo 1996). Acanthonyx dissimulatus is frequently found in association with algae, such as red algae, Sargassum sp. C. Agardh, unidentified brown algae, and on drifted algae on sand bottoms (Almeida et al. 2010).

Remarks. Acanthonyx dissimulatus was considered endemic from Brazil (Coelho & Torres 1993) but recently the species geographic distribution was expanded to Mexico (Tamburus & Mantelatto 2012).

Previous records in Sergipe. None.