Nemertesia perrieri ( Billard, 1901 )

Gil, Marta & Ramil, Fran, 2025, Hydroids (Cnidaria, Hydrozoa) from Guinea Bissau, Zootaxa 5577 (1), pp. 1-89 : 67-68

Nemertesia perrieri ( Billard, 1901)

Antennularia Perrieri Billard, 1901: 73 .—Billard, 1906: 211, fig. 15C.

Nemertesia perrieri : Gili et al., 1989: 86, fig. 13A–B.— Ansín Agís et al., 2001: 211–215, fig. 82.— Peña Cantero & García Carrascosa, 2002: 114–115, fig. 22a–c.— Vervoort, 2006: 256.

Nemertesia irregularis : Ramil & Vervoort, 1992a: 170–173, fig. 48a.— Medel & Vervoort, 1995: 52–56, figs 22, 23c [non Nemertesia irregularis ( Quelch, 1885) ].

Material examined. CCLME-1110, stn BT60, 12º03'04"– 12º01'38"N, 17º23'45"– 17º23'34"W, 478–486 m, 30-X-2011: one colony without gonothecae, 77 mm high, substrate unknown.

Remarks. Our material conforms to that studied by Gil et al. (2020) from the Mauritanian coral mounds. No further discussion is required.

Biology. This species usually provides a substrate for other hydroids, and is common in mixed sand and muddy bottoms. Conversely, it has also been found growing on polychaete tubes ( Medel & Vervoort 1995; Peña Cantero & García Carrascosa 2002). In the northern hemisphere, gonothecae have been found between February–May, July and August ( Ansín Agís et al. 2001; Peña Cantero & García Carrascosa 2002; Gil & Ramil 2017a).

Distribution. Nemertesia perrieri has been recorded from NW France to Guinea-Bissau, including the Mediterranean Sea ( Gili et al. 1989; Gil et al. 2020). Its distribution in NW Africa has recently been revised by Gil et al. (2020). Its bathymetric distribution ranges from 5 to 1837 m depth ( Ansín Agís et al. 2001; Peña Cantero & García Carrascosa 2002; Gil & Ramil 2017a).

Our colony was collected at depths between 478–486 m.