Fig. 3 in Alcyonidium kuklinskii sp. nov., a new species of Antarctic ctenostome bryozoan with a key to all Antarctic species of the genus

Fig. 3 Histological sections of Alcyonidium kuklinskii sp. nov. a Multiple internal zooids filling the internal branch. Note only close to the colony wall there are functional polypides. b Apertural area showing deep vestibular wall and medium- sized collar at its bottom. Parts of the remaining polypide are also visible. c Cross- sectioned lophophore showing 21 tentacles. d Detail of the thick, multi-layered colony wall. Abbre: az – autozooid, c – collar, cae – caecum, cow – colony wall, db – duplicature band, izw – interzooidal wall, ply – polypide, ts – tentacle sheath, v – vestibulum, vw – vestibular wall