Bedotella armata ( Pictet & Bedot, 1900 )

Gil, Marta, Ramil, Fran & Agís, José Ansín, 2020, Hydroids (Cnidaria, Hydrozoa) from Mauritanian Coral Mounds, Zootaxa 4878 (3), pp. 412-466 : 426-427

Bedotella armata ( Pictet & Bedot, 1900)

( Fig. 3A )

Bedotella armata: Ramil & Vervoort, 1992: 50–52 , figs. 7c–d, 10a–c; Álvarez Claudio, 1993: 132–134, fig. 22, Lam. 4; Bouillon et al., 2004: 150, fig. 80I–K; Vervoort, 2006: 234–235.

Material examined. MAURIT-0911, stn MUDR01 , 16º08´24”N, 16º57´12”W, 488 m, 5-XII-2009: two colonies, one colony badly damaged, without gonothecae .

Biology. This species has been found growing on other hydroid species, the corals D. cornigera and L. pertusa and worm tubes ( Aguirrezabalaga et al. 1984; Ramil & Vervoort 1992; Álvarez Claudio 1993; Vervoort 2006). Fertile material has been found in April, July ( Álvarez Claudio 1993) and October ( Vervoort 2006).

Distribution. Bedotella armata has an Atlantic-Mediterranean distribution ( Ramil & Vervoort 1992), extending from the Bay of Biscay to Cape Verde Islands and West Mediterranean ( Vervoort 2006). In West Africa, it was collected from Mauritania ( Gil & Ramil 2017a) and Cape Verde Islands ( Vervoort 2006). Its bathymetric range extends from 100 ( Aguirrezabalaga et al. 1984, as Campanularia armata Pictec & Bedot, 1900 ) to 1200 m ( Vervoort 2006).

Our material was obtained from a depth of 488 m.

Remarks. The presence of globular nematothecae on stolonal tubes and characteristic shape of the hydrothecae helped in identifying this species, even the damaged colony, without any doubt.

Figures

FIGURE 3. A, Bedotella armata (Pictet & Bedot, 1900) (stn MUDR01), part of colony with two renovated hydrothecae and nematothecae. B–D, Sertularella gayi (Lamouroux, 1821) (stn GeoB 14908–1): B, part of lateral branch. C–D, gonothecae, lateral view. E, Sertularella porcupine nom. nov. (stn MUDR01), hydrocladium with hydrothecae and gonotheca. F, Halopteris catharina (Johnston, 1833) (stn GeoB 14796–1), part of hydrocladium. Scales: a–e, 1 mm; f, 0.5 mm.