Rzhavsky, Alexander V. (1997). Three new species and a new genus of Spirorbidae (Polychaeta) from the southern Indian Ocean, with a brief description of two species incerta sedis from the southern hemisphere. Ophelia. 46(3): 233-245.
Three new species and a new genus of Spirorbidae (Polychaeta) from the southern Indian Ocean, with a brief description of two species incerta sedis from the southern hemisphere
Crozetospira dufresnei gen. n., sp. n. from Crozet Islands is placed provisionally in the Paralaeospirinae. It has asymmetrical distribution of abdominal uncini, 3 thoracic setigers and simple collar chaetae with coarsely serrated and cross-striated blades. Paralaeospira pseudotenuis sp. n. from Heard Island differs from other Paralaeospira in having a strongly calcified conical opercular "plate" without a talon. Romanchella sepicula sp. n. from Crozet and Marion Islands is unusual for the genus in having a pin-shaped talon. Brief descriptions of what appear to be a Eulaeospira sp. and a Nidificaria sp. (from Adelie Land and Kerguelen Islands respectively) are based on non-brooding specimens. The former has unusual opercular morphology, with two talons on the same opercular plate.
Antarctic
Southern Ocean: Antarctic and Subantarctic marine regions together (= E+W+S+M(+T))