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Hydractinia angusta

Hydractinia angusta

Hartlaub, 1904

GBIF:146019657

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ABOUT

Descriptions(2)

Hydractinia angusta — Peña Cantero, 2015: 380 – 383, fig. 7 A – H (synonymy).
Peña Cantero, Álvaro L., Marzal, Marina Fresneda (2018): Benthic hydroids (Cnidaria: Hydrozoa) from off George V Coast (East Antarctica). Zootaxa 4441 (1): 121-136, DOI: 10.11646/zootaxa.4441.1.7
Remarks. Peña Cantero (2015) carried out a re-description of this species and an eXhaustive revision of the records of Hydractinia angusta, concluding that it is not clear if all the material previously assigned to this species actually belongs to it; the only certain record corresponds to the original description by Hartlaub (1904) from the Bellingshausen Sea, in West Antarctica. Briggs (1938) recorded the species from Commonwealth Bay, at depths between 81 and 90 m.
Peña Cantero, Álvaro L., Marzal, Marina Fresneda (2018): Benthic hydroids (Cnidaria: Hydrozoa) from off George V Coast (East Antarctica). Zootaxa 4441 (1): 121-136, DOI: 10.11646/zootaxa.4441.1.7

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CLASSIFICATION

Taxonomic Classification Tree

AnimaliaCnidariaHydrozoaAnthoathecataHydractiniidaeHydractiniaHydractinia angusta

Occurrences with images

Source Information

Benthic hydroids (Cnidaria: Hydrozoa) from off George V Coast (East Antarctica)

checklist

This dataset contains the digitized treatments in Plazi based on the original journal article Peña Cantero, Álvaro L., Marzal, Marina Fresneda (2018): Benthic hydroids (Cnidaria: Hydrozoa) from off George V Coast (East Antarctica). Zootaxa 4441 (1): 121-136, DOI: 10.11646/zootaxa.4441.1.7

Abstract

Hydrozoans are one of the main and most characteristic zoological groups of Antarctic benthic communities, yet there are Antarctic areas where the hydrozoan fauna is completely unknown or scarcely known as off George V Coast (East Antarctica). Hitherto, only two studies have dealt with hydroids from this area and only 16 species have been reported. The present study contributes to increase knowledge of the benthic hydroid fauna off George V Coast by studying material collected during a sampling survey associated with the CEAMARC project. A total of 12 species of benthic hydroids were found. Anthoathecata is only represented by Bimeria corynopsis, the remaining species, including Schizotricha auroraaustralis sp. nov., belong to Leptothecata. Seven of the 12 species found in the study represent new records for the area; therefore, the number of benthic hydroids known off George V Coast is raised to 23. Staurotheca is the most speciose genus, represented by three species, followed by Schizotricha with two; the remaining genera are each represented by a single species. All species are restricted to Antarctic or Antarctic/sub-Antarctic waters. Nine species (75%) are endemic to the Antarctic region, most with a circum-Antarctic distribution (7 species); only two are endemic to East Antarctica. Three species are also distributed in sub-Antarctic waters.

Peña Cantero Á L, Marzal M F, plazi (2018). Benthic hydroids (Cnidaria: Hydrozoa) from off George V Coast (East Antarctica). Plazi.org taxonomic treatments database. Checklist dataset https://doi.org/10.11646/zootaxa.4441.1.7 accessed via GBIF.org on 2026-06-16.

CC0Published 6/26/2018View dataset
GBIF Usage Key
146019657
Dataset Key
0535eaeb-2e3b-4b6d-9ced-58a61fd02e03
Origin
source
Backbone Key
2265931
Taxon ID
03AC2855FF88FFB7E7FE7B916DC12EE7.taxon
Last Crawled
6/10/2026
Last Interpreted
6/10/2026
View on GBIFSource Reference