Haminoea antillarum (d’Orbigny, 1841)

Delgado, Marlon, Freire, Fúlvio Aurélio de Morais, Meirelles, Carlos Augusto Oliveira de, Padula, Vinicius, Bahia, Juliana & Brandão, Simone Nunes, 2022, Sea slugs (Gastropoda: Heterobranchia) from Rio Grande do Norte, Northeastern Brazil, Papéis Avulsos de Zoologia 62, pp. 1-26 : 4-6

02. Haminoea antillarum (d’Orbigny, 1841) ( Fig. 2B )

Material examined: Praia de Pirambúzios, Nísia Floresta, 12.IV.2010, one specimen, 2 mm (body length), leg. A. Pires ( GEEFAA 344), 14.IV.2010, two specimens, 2-4 mm (body length), leg. A. Pires ( GEEFAA 256a).

Description: Oblique body, predominantly translucent, light beige coloration. Shell transparent and, on the ventral side, with dark beige tone, dotted with several black circular spots. In the head, there is a one-piece cephalic shield that narrows towards the shell. On dorsal side of the shield there are black eyes very close together, similar to eyes of planarians. Slightly calcified shell, flattened at its apex and rounded at its base, with very wide cavity. The animal not able to retract completely into the shell.

Geographic distribution: Eastern Atlantic, ( Rios, 2009; Rosenberg et al., 2009), zoogeographic provinces: Mauritian, Senegalese and South-Eastern Atlantic ( García & Bertsch, 2009); Western Atlantic: Bahamas, Belize, Bermudas, Bonaire, Cayman Island, Colombia, Costa Rica, Cuba, CuraÇao, Granada, Guadeloupe, Honduras, Jamaica, Mexico, Panama, Puerto Rico, USA, Venezuela, Virgin Islands, Brazil (Alagoas, Ceará, Pernambuco, Rio de Janeiro, Rio Grande do Norte – present study, Rio Grande do Sul, São Paulo) ( García et al., 2008; Padula et al., 2012; Zamora-Silva & Ortigosa, 2012).

Figures

Figure 1. Sampling areas along the coast of Rio Grande do Norte state,northeastern Brazil.

Figure 2. Heterobranch sea slugs from Rio Grande do Norte. (A) Micromelo undatus (15 mm – GEEFAA 294); (B) Haminoea antillarum (2 mm – GEEFAA 344); (C)Camachoaglaja berolina(7 mm– GEEFAA270);(D)Chelidonurahirundinina(16mm– GEEFAA1320);(E)Navanaxgemmatus (40mm– MZSP97068);(F)Ascobulla ulla (7 mm – MZSP 97049); (G) Oxynoe antillarum (25 mm – GEEFAA 352); (H) Elysia canguzua (15 mm – GEEFAA 295); (I) Elysia pawliki (25 mm – MZSP 97061); (J) Elysia subornata (14 mm – MZSP 97050); (K) Thuridilla malaquita (15 mm – phot. reg.); (L) Caliphylla mediterranea (9 mm – GEEFAA 349); (M) Aplysia cervina (70mm – MZSP 97074); (N) Aplysia dactylomela (76 mm – MZSP 97073);(O) Bursatellaleachii (75 mm – GEEFAA 324).