Campanularia sp.

Peña Cantero, Álvaro L., 2021, Additions to knowledge of the biodiversity of benthic hydroids (Cnidaria: Hydrozoa) in the Balleny Islands (Antarctica), Zootaxa 4966 (3), pp. 321-336 : 325-326

publication ID

https://doi.org/ 10.11646/zootaxa.4966.3.4

publication LSID

lsid:zoobank.org:pub:F4CABF6C-1993-4112-A03E-4DBF708BB025

DOI

https://doi.org/10.5281/zenodo.4784076

persistent identifier

https://treatment.plazi.org/id/ED10C428-FFF6-230D-FF50-0B95FCF8FE2A

treatment provided by

Plazi

scientific name

Campanularia sp.
status

 

Campanularia sp.

( Fig. 1F–G View FIGURE 1 )

Material examined. TAN 0602/420, several hydrothecae, on S. compressa ( NIWA 144251).

Description. Stolonal hydrorhiza giving rise to erect, slightly sinuous, smooth pedicels provided with a single distal hydrotheca.

Hydrotheca elongated, bell-shaped ( Fig. 1F View FIGURE 1 ), 800–1050 µm high, resting on a basal spherule, 60 µm high and

70 µm wide, and provided with a distinct diaphragm ( Fig. 1G View FIGURE 1 ), 110 µm in diameter, delimiting a basal chamber 70 µm high ( Fig. 1G View FIGURE 1 ). Distinct inflexion point at diaphragm ( Fig. 1G View FIGURE 1 ); hydrothecal diameter markedly increasing just above basal chamber, only slightly afterwards (maximum diameter at aperture, 340–520 µm). Hydrothecal aperture circular; rim provided with 16 blunt cusps ( Fig. 1F View FIGURE 1 ), slightly directed inwards and separated by deep embayments.

Larger microbasic mastigophores around 10 x 2.5 µm.

Remarks. The material seems to be conspecific with material reported from other Antarctic waters (e.g. Peña Cantero et al. 2004; Peña Cantero 2013). The absence of gonothecae, here and in previous records, prevent the identification to species level.

Ecology and distribution. Present material, which represents the first record for the area, collected at a depth of 103−108 m off Sturge Island, epibiotic on S. compressa .

NIWA

National Institute of Water and Atmospheric Research

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF