13. Aplysia cervina (Dall & Simpson, 1901) (Fig. 2M)

Material examined: Praia de Santa Rita, Extremoz, 11.III.2009, four specimens, 30-70 mm (body length), leg. V. Padula (MZSP 97074; GEEFAA 305 and 308), 04.I.2014, one specimen, 29 mm (body length), leg. M. Delgado (GEEFAA 322). Praia de Pirambúzios, Nísia Floresta, 07.IV.2011, one specimen, 30 mm (body length), leg. M. Delgado (GEEFAA 321) ; 01.III.2015, one specimen, 26 mm (body length), phot. reg. M. Delgado. Praia de Pitangui, Extremoz, 27.XII.2019, one specimen, 80 mm (body length), phot. reg. M. Delgado .

Description: Elongated and bulging body, size up to 100 mm in length. Color predominantly reddish-brown, dotted with circular and opaque black spots and shapeless white spots which cover the side and the entire internal region of the parapodia. Head with black eyes and elongated, cylindrical-retractable rhinophores, a veil formed by the fusion of the cephalic tentacles. Parapodia located in the medial region, between them there is a mantle that covers the inner shell filled with the visceral mass, descending to the substrate plane, forming a small tail together with the muscular foot.

Geographic distribution: Western Atlantic: Aruba, Barbados, Bonaire, Colombia, Cuba, CuraÇao, Mexico, Puerto Rico, St. Lucia, USA, Venezuela, Brazil (Alagoas, Ceará, Pernambuco, Rio Grande do Norte – present study, São Paulo) (MacFarland,1909;Er. Marcus,1957; Rios,1994; Rios, 2009; Padula et al., 2012; Galvão-Filho et al., 2015).