Opercularella lacerata (Johnston, 1847)

Picture: Fig. 1

Picture: Fig. 2

Picture: Fig. 3

SYNONYMY

Campanularia lacerata Johnston, 1847

Campanulina lacerata Johnston, 1847

DESCRIPTION

Small, erect, branched colony. Stem irregularly annulated (Fig. 1). Hydrothecae widest in the middle part, on short, 2-5 ringed pedicel, ended with conical operculum of 9-12 pointed flapsi withought a crease-line (Fig. 2, 3). Gonotheca borne on short pedicels arising from main stem, branches and stolons (Fig. 1). Female gonotheca large, with wide aperture, develop acrocysts with brooded planulae.

DISTRIBUTION IN SVALBARD

Hornsund, Rijpfjorden

First records in Svalbard waters

WORLD DISTRIBUTION

Mediterranean Sea, North Atlantic Ocean, European waters, Baltic Sea

DEPTH

5-7 m

SUBSTRATE

Algae, rock

REPRODUCTION

Fixed gonophores. Gonothecae present.