Diaulula greeleyi ( MacFarland, 1909 )

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

25. Diaulula greeleyi ( MacFarland, 1909) ( Fig. 3J )

Material examined: Praia de Rio do Fogo, Rio do Fogo, 28.I.2010, one specimen, 7 mm (body length), leg. M. Delgado ( GEEFAA 302 ). Praia de Santa Rita, Extremoz , 11.X.2008, two specimens, 5-9 mm (body length), leg. M. Delgado ( MZSP 97046 ), 26.III.2009, two specimens, 7-10 mm (body length), leg. S. Delgado, 28.III.2009, two specimens, 6-13 mm (body length), leg. M. Delgado ( GEEFAA lot 316), 26.IV.2009, five specimens, 3-20 mm (body length), leg. F. Santos ( GEEFAA 259 a), 24.VI.2009, four specimens, 3-14 mm (body length), leg. M. Delgado ( GEEFAA lot 316), 09.VII.2009, three specimens, 7-11 mm (body length),leg. M.Delgado ( GEEFAA lot 316), 05.I.2011, one specimen, 11 mm (body length), leg. M. Delgado ( GEEFAA 290 ). Praia de Pirambúzios, Nísia Floresta, 11.VII.2009, three specimens, 5-10 mm (body length), leg. F. Santos ( GEEFAA 317 ), 08.XII.2013, one specimen, 6 mm (body length), leg. M. Delgado ( GEEFAA 348 ), 15.XII.2013, three specimens, 5-10 mm (body length), leg. S. Delgado ( GEEFAA 283 ), 18.I.2014, two specimens, 8-10 mm (body length), leg. M. Delgado ( GEEFAA 341 ). Praia de Baia Formosa, Baia Formosa, 04.VII.2009, 15 specimens, 4-10 mm (body length), leg. M. Delgado ( GEEFAA 288 – 13 expl.; MZSP 97045 – 2 expl.), 05.VII.2009, three specimens, 3-4 mm (body length), leg. F. Santos ( GEEFAA 301 ). Praia de Pitangui, Extremoz, 11.I.2019, four specimens, 4-14 mm (body length), leg. M. Delgado ( GEEFAA 1313 ) .

Description: Body flat and elliptical, yellow-orange coloration with small, subcircular, brown-black patches, and brown-black longitudinal,subparallel lines from the base of rhinophores to the gills. Rhinophores dark brown in the laminar portion and yellow-orange in the basis. Gills brown-black with translucent orange on the margins and center portion. Conical oral tentacles, lamellate retractile rhinophores. Medial portion of notum with abundant tubercles. Mantle margins with glands. Unipinnate and retractile gills. Muscular foot narrower than the mantle, anteriorly bifurcated and short in the posterior portion.

Geographic distribution: Eastern Pacific Ocean: Mexico, Costa Rica ( Camacho-García & Valdés, 2003; Valdés et al., 2006; Dayrat, 2010); Western Atlantic: Bahamas, Costa Rica, USA, Brazil (Alagoas, Ceará, Pernambuco, Rio de Janeiro, Rio Grande do Norte – present study, São Paulo) ( MacFarland,1909:as P.greeleyi ; Marcus, 1955; Ev.Marcus & Er. Marcus, 1967a; Rios, 1994; García et al., 2008; Padula et al., 2012; Alvim & Pimenta,2013; Camacho-García et al., 2014; Galvão-Filho et al., 2015).

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).