Antarctoscyphus spiralis (Hickson and Gravely 1907)
- Dataset
- Benthic hydroids (Cnidaria: Hydrozoa) from off George V Coast (East Antarctica)
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Cnidaria
- class
- Hydrozoa
- order
- Leptothecata
- family
- Sertulariidae
- genus
- Antarctoscyphus
- species
- Antarctoscyphus spiralis
biology_ecology
Ecology and distribution. Our material was collected from depths between 423 and 480 m, and with gonothecae in January. Previously reported by Briggs (1938), at depths between 99 and 720 m, from Commonwealth Bay. Circum-Antarctic distribution (Stepanjants 1979).
description
Symplectoscyphus spiralis — Briggs, 1938: 34 – 35. Antarctoscyphus spiralis — Peña Cantero et al., 2017: 31 – 34, fig. 13 (synonymy).
discussion
Remarks. This is a well-known species, easily recognizable by the presence of three internal cusps situated at the embayments between the cusps of the hydrothecal aperture (Fig. 3 D). See Peña Cantero et al. (2017) for a recent diagnosis.
materials_examined
Material examined. 29 EV 59, a stem fragment 70 mm long (IK – 2009 – 0335); 63 EV 314, a colony fragment 70 mm long, with gonothecae (IK – 2012 – 10434).