Campanularia hincksii Alder, 1856

Gil, Marta & Ramil, Fran, 2025, Hydroids (Cnidaria, Hydrozoa) from Guinea Bissau, Zootaxa 5577 (1), pp. 1-89 : 28-29

Campanularia hincksii Alder, 1856

Campanularia hincksii Alder, 1856: 360 , pl. 13 fig. 9.— Millard, 1966a: 471–472, fig. 12A–D.— Ramil & Vervoort, 1992a: 233– 235, fig. 66.— Cornelius, 1995b: 229–231, fig. 52.— Medel & Vervoort, 2000: 28–30.— Peña Cantero & García Carrascosa, 2002: 138–142, fig. 27A–B.

Material examined. BISSAU-0810, stn BS191, 10º18'25"– 10º19'20"N, 16º08'47"– 16º08'47"W, 24–25 m, 3-XI-2008: one colony without gonothecae growing on Bimeria vestita .

BISSAU-0810, stn BS192, 10º19'30"– 10º20'15"N, 16º10'27"– 16º10'59"W, 24 m, 3-XI-2008: two colonies, up to 12 mm high, without gonothecae; one of them growing on Idiellana pristis .

BISSAU-0810, stn BS193, 10º21'13"– 10º21'51"N, 16º10'17"– 16º10'56"W, 20–21 m, 3-XI-2008: 24 colonies (3 with gonothecae), up to 15 mm high, of which 21 growing on bryozoans, and one epizootically on Idiellana pristis .

BISSAU-0810, stn BS195, 10º22'44"– 10º23'22"N, 16º15'37"– 16º16'18"W, 29 m, 3-XI-2008: five colonies (three with gonothecae), of which three growing on bryozoans.

BISSAU-0810, stn BS200, 10º18'55"N, 16º25'07"W, 79 m, 4-XI-2008: three colonies without gonothecae, of which two growing on Sertularelloides cylindritheca and one on Sertularella gayi .

Remarks. This is a well-known species that requires no further comments.

Biology. This species has been found growing on a wide variety of substrates, including invertebrates ( Peña Cantero & García Carrascosa 2002). In the northern hemisphere, fertile colonies have been found throughout the year ( Peña Cantero & García Carrascosa 2002; Gil et al. 2020), while in the southern hemisphere, gonothecae were found in January ( Gil & Ramil 2021b), July and October ( Millard 1966a).

In our material, colonies were found growing on hydroids and bryozoans. Gonothecae were found in November.

Distribution. Campanularia hincksii is a circumglobal species ( Peña Cantero & García Carrascosa 2002) widely distributed in West Africa ( Gil et al. 2020) and also recorded from the Vema and Valdivia Seamounts ( Gil & Ramil 2021b). Its bathymetric distribution extends from the tidal level to a depth of 1200 m ( Leloup 1940; Peña Cantero & García Carrascosa 2002).

Our material was collected at depths between 20–79 m.

Genus Orthopyxis L. Agassiz, 1862