Oswaldella erratum Peña Cantero & Vervoort, 1997

Peña Cantero, Álvaro L. & Marzal, Marina Fresneda, 2018, Benthic hydroids (Cnidaria: Hydrozoa) from off George V Coast (East Antarctica), Zootaxa 4441 (1), pp. 121-136: 133

publication ID

https://doi.org/10.11646/zootaxa.4441.1.7

publication LSID

lsid:zoobank.org:pub:2D48BC12-329C-4476-BF43-4648B4807E3B

persistent identifier

http://treatment.plazi.org/id/03AC2855-FF87-FFB8-E7FE-7DB768A92BCB

treatment provided by

Plazi

scientific name

Oswaldella erratum Peña Cantero & Vervoort, 1997
status

 

Oswaldella erratum Peña Cantero & Vervoort, 1997 

( Fig. 3I View Figure )

Oswaldella erratum  — González Molinero & Peña Cantero, 2015: 435 (synonymy).

Material examined. 38EV73, four stem fragments up to 80 mm high, with gonothecae (IK–2009–0498).

Description. Monosiphonic, unbranched stems, up to 80 mm high, not divided into internodes. Angle between cauline apophyses and stem c. 70°. Cauline apophyses with two aXillary nematophores. First hydrocladial internode bifurcated with two similar prongs. Hydrotheca elongate ( Fig. 3I View Figure ), not completely adnate, placed on middle of internode. Adcauline wall strongly curving at distal part. Hydrothecal aperture kidney-shaped, adcaudally directed. Mesial-inferior nematophore provided with a nematotheca.

Ecology and distribution. Present material collected at depths between 689 and 720 m, with gonothecae in December. Oswaldella erratum  was considered to have a West Antarctic distribution (Peña Cantero & Vervoort 2004b; González Molinero & Peña Cantero 2015), however, our material, from East Antarctica, indicates a circum- Antarctic distribution.

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Kirchenpaueriidae

Genus

Oswaldella

Loc

Oswaldella erratum Peña Cantero & Vervoort, 1997

Peña Cantero, Álvaro L. & Marzal, Marina Fresneda 2018

2018
Loc

Oswaldella erratum

: 435