Orthopyxis integra

Orthopyxis integra

(fig. 4J)

Campanularia integra Macgillivray, 1842: 465.

Campanularia compressa.— Patriti, 1970: 34, fig. 43.

Orthopyxis integra.— Cornelius, 1982: 60, figs 6a–h.— Cornelius, 1995b: 235 –239, fig. 54.— Medel & López-González, 1996: 207.—Morri & Bianchi, 1999: 288.— Medel & Vervoort, 2000: 59 –62, fig. 13b–c.—Peña Cantero & García Carrascosa, 2002: 166–167, fig. 27G–I.— Bouillon et al., 2004: 201 –202, figs. 116I–S.

Material studied. Ormonde, stn 1: abundant, covering algae (not Zonaria tournefortii). Ormonde, stn 4: very abundant, on different species of algae (not Zonaria tournefortii), DBUA 1525.02.

Reported distribution. Eastern Atlantic.—Widely distributed from the Arctic (Broch 1918) to South Africa (Millard, 1975) (e.g. Cornelius 1982; Medel & Vervoort 2000). In the Portuguese territory this species was only seen in the Azores (Cornelius 1992; Medel & Vervoort 2000). I found it already at various localities of mainland Portugal, but the species remain unseen at the Madeira and Selvagens archipelagos (unpublished dataset). This is the first record of O. integra in the Gorringe.

Mediterranean.—Widespread (e.g. Medel & Vervoort 2000; Peña Cantero & García Carrascosa 2002).

Elsewhere.—Supposedly one of the most cosmopolitan shallow-water hydroids, although not found in some geographical areas, such as Kattegat, Skagerrak, Baltic Sea and Dutch waters (Cornelius 1982). The species has been more often detected at warmer waters (Medel & Vervoort 2000).