Tyrinna evelinae (Er. Marcus, 1958)

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 : 14

24. Tyrinna evelinae (Er. Marcus, 1958) ( Fig. 3I )

Material examined: Praia de Pitangui, Extremoz, 05.III.2019, one specimen, 18 mm (body length), leg. M. Delgado ( GEEFAA 1305).

Description: Body elongated and oval, 18 mm in length. Body translucent white with many orange spots. Rhinophores translucent with opaque white tips and spot on top. Translucent gill and tail creamish white. Mantle marginal with line on edge and white glands. Foot extending beyond the mantle. Mantle wider than foot. Gills leaves bipinnate divided in three pairs.

Geographic distribution: Eastern Pacific and Eastern Atlantic ( Valdés et al., 2006); Western Atlantic: Costa Rica, Dominican Republic, Jamaica, Panama, Puerto Rico, Venezuela, Brazil (Rio de Janeiro, Rio Grande do Norte – present study, São Paulo) ( Valdés et al., 2006; Rios, 2009; Belmonte et al., 2015; Goodheart et al., 2016).

Remarks: No morphological differences were found between specimens from the Eastern Pacific and Atlantic ( Schrödl & Millen, 2001). Further molecular studies will confirm if T. evelinae is truly a widespread species or may represent a species complex.

Figures

Figure 3. Heterobranchsea slugsfrom Rio Grandedo Norte.(A) Phyllaplysiaengeli (6mm – GEEFAA342);(B)Berthela agassizii(11mm –MZSP 97047);(C) Berthella nebula (7 mm– GEEFAA 1307);(D)Berthella vialactea(14mm – GEEFAA 304);(E) Berthellinaignis (10 mm– GEEFAA 335);(F) Cadlina rumia(10mm – GEEFAA311); (G) Felimida clenchi (9 mm – MZSP 97070); (H) Felimare sp. (13 mm – GEEFAA 313); (I) Tyrinna evelinae (18 mm – GEEFAA 1305); (J) Diaulula greeleyi (20 mm – GEEFAA 259a); (K) Discodoris branneri (70 mm – MZSP 97063); (L) Geitodoris pusae (14 mm – GEEFAA 338); (M.1) Sclerodoris prea (33 mm – GEEFAA 1314); (M.2) Sclerodoris prea (35 mm – GEEFAA1314); (N) Taringa iemanja (25 mm – MZSP 97062);(O) Taringa telopia (18 mm – MZSP 97071).