6533b861fe1ef96bd12c430c

RESEARCH PRODUCT

Redescription and systematic status of the Antarctic genusAbietinellaLevinsen, 1913 (Lafoeidae, Hydrozoa, Cnidaria)

Alvaro Esteves MigottoÁLvaro L. Peña CanteroAntonio C. Marques

subject

CnidariaGenusEcologyOperculum (bryozoa)AbietinellaAperture (mollusc)HolotypeZoologyAbietinella operculataBiologybiology.organism_classificationEcology Evolution Behavior and SystematicsHydrozoa

description

The Antarctic–Patagonian genus Abietinella, comprising two known species, Abietinella operculata (Jaderholm, 1903) and Abietinella grandis (Vanhoffen, 1910), is reviewed. The holotype of Abietinella operculata is fully redescribed, including morphometry and cnidome, unknown up to now. Its distinctive characters are the growth habit, hydrothecal shape and, most important, the presence of a dish‐shaped operculum attached to the adcauline side of the hydrothecal aperture. We corroborate its conspecificity with A. grandis and, therefore, the monotypic condition of Abietinella.

yearjournalcountryeditionlanguage
2005-09-01Journal of Natural History
https://doi.org/10.1080/00222930400005765