Halecium exaggeratum Pena Cantero, Boero & Piraino 2013

• Main Author: Peña Cantero, Álvaro L.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Cnidaria; Hydrozoa; Leptothecata; Haleciidae; Halecium; Halecium exaggeratum; Antarc*; Antarctica; Balleny Islands; Young Island
• Online Access: https://doi.org/10.5281/zenodo.4736734; http://treatment.plazi.org/id/ED10C428FFFA2300FF50097AFBD1FA52

Halecium exaggeratum Peña Cantero, Boero & Piraino, 2013 (Fig. 2C) Material examined. TAN 0102/K0809 , a few stems up to 10 mm high, with putative male gonothecae, on tube of benthic organism (NIWA 144358). Measurements (in µm). Hydrotheca : diameter at aperture 190–200, diameter at diaphragm 125, height 50. Hydrophore : adcauline length 300. Remarks. The relatively long hydrophore and the shape and size of the hydrotheca allow a certain identification. It is worth mentioning the occasional presence of a pseudodiaphragm, faintly visible in stained material (Fig. 2C). Ecology and distribution. The material, which represents the first record from the Balleny Islands, was collected at a depth of 292 m, off Young Island. Gonothecae present in March. Published as part of Peña Cantero, Álvaro L., 2021, Additions to knowledge of the biodiversity of benthic hydroids (Cnidaria: Hydrozoa) in the Balleny Islands (Antarctica), pp. 321-336 in Zootaxa 4966 (3) on page 329, DOI:10.11646/zootaxa.4966.3.4, http://zenodo.org/record/4736691