Staurodiscus Haeckel, 1879

Schuchert, Peter & Collins, Richard, 2021, Hydromedusae observed during night dives in the Gulf Stream, Revue suisse de Zoologie 128 (2), pp. 237-356 : 284

publication ID

https://doi.org/ 10.35929/RSZ.0049

DOI

https://doi.org/10.5281/zenodo.5705932

persistent identifier

https://treatment.plazi.org/id/D0118A7C-5B3C-0024-FECB-F9BDFB227F53

treatment provided by

Felipe

scientific name

Staurodiscus Haeckel, 1879
status

 

Genus Staurodiscus Haeckel, 1879 View in CoL View at ENA

Staurodiscus Haeckel, 1879: 145 View in CoL ,

type species Staurodiscus tetrastaurus Haeckel, 1879 ( Kramp, 1961: 147) View in CoL .

Staurodiscalma Haeckel, 1879: 145 View in CoL , type species Staurodiscus tetrastaurus Haeckel, 1879 View in CoL by monotypy.

Staurodiscema Haeckel, 1879: 146 View in CoL , type species Staurodiscus heterosceles Haeckel, 1879 View in CoL by monotypy.

Toxorchis Haeckel, 1879: 157 , type species Toxorchis arcuatus Haeckel, 1879 by monotypy.

Staurodiscoides Uchida, 1927b: 165 View in CoL , type species Staurodiscoides gotoi Uchida, 1927 View in CoL by monotypy.

Diagnosis: Medusa with 4 or more main primary radial canals, some or all branching one or more times, primary canal and some or all of the branches reaching circular canal; gonads on primary radial canals and branches; numerous tentacles and cordyli; with or without cirri; with or without ocelli.

Hydroid epizootic, Hebella -like; hydrothecae almost conical when growing on upper part of the host, cylindrical when growing on lower part of same host; asymmetrical to symmetrical; with everted margin, sharply or slightly oblique, with short to long, wrinkled or annulated pedicels; with membranous diaphragm (sometimes absent) and annular thickening; gonophores as free medusae; gonotheca as big or slightly bigger than hydrotheca, with four opercular flaps, on short pedicel, slightly undulated walls, truncated distally, tapering at base, containing up to three medusae ( Bouillon et al., 2006).

Remarks: See Kramp (1962) and Bouillon (1984b) for emended diagnosis and synopsis of the species. For the life cycle see Migotto & Andrade (2000).

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Hebellidae

Loc

Staurodiscus Haeckel, 1879

Schuchert, Peter & Collins, Richard 2021
2021
Loc

Staurodiscoides

Uchida T. 1927: 165
1927
Loc

Staurodiscus

Kramp P. L. 1961: 147
Haeckel E. 1879: 145
1879
Loc

Staurodiscalma

Haeckel E. 1879: 145
1879
Loc

Staurodiscema

Haeckel E. 1879: 146
1879
Loc

Toxorchis

Haeckel E. 1879: 157
1879
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