Plumularia polynema Fraser, 1941b

Calder, Dale R. & Choong, Henry H. C., 2018, Names of hydroids (Cnidaria, Hydrozoa) established by Charles McLean Fraser (1872 - 1946), excluding those from Allan Hancock Expeditions, Zootaxa 4487 (1), pp. 1-83: 52-53

publication ID

https://doi.org/10.11646/zootaxa.4487.1.1

publication LSID

lsid:zoobank.org:pub:524B23B9-8EAA-4BD6-8937-A1B8F1C057B9

persistent identifier

http://treatment.plazi.org/id/0392282A-FFD5-FFD0-AEC1-596D1A92FD22

treatment provided by

Plazi

scientific name

Plumularia polynema Fraser, 1941b
status

 

Plumularia polynema Fraser, 1941b 

Plumularia polynema Fraser, 1941b: 87  , pl. 18, figs. 15a, b.

Holotype. USNM 43459View Materials: USA, Massachusetts, off Martha’s Vineyard, R / V Fish Hawk Sta. 1092, 39°58’N, 69°42’W, 369 m, 11 August 1882, trawl, several fragments of a colony, the largest ones 7 mm, 5 mm, and 5 mm long, in rather poor condition, without gonophores, labelled “ type ”; ethanol.GoogleMaps 

Paratypes. USNM 24360View Materials: USA, Massachusetts, off Martha’s Vineyard ; ethanol. 

BCPMAbout BCPM 976-00928-001: USA, Massachusetts, off Martha’s Vineyard, “near USFCAbout USFC Stn. 1038”, in poor condition, without gonothecae; 60% IPAAbout IPA.

Type locality. USA, Massachusetts: off Martha’s Vineyard , 39°58’N, 69°42’W, 202 fm (369 m) ( Fraser 1941b).GoogleMaps 

Current status. Valid.

Remarks. In describing Plumularia polynema, Fraser (1941b)  designated material at the NMNHAbout NMNH ( USNMAbout USNM 43459) as its “ type ”. That collection, thereby fixed as the name-bearing type of the species, is currently listed as syntype material in the NMNHAbout NMNH online database. Regarded here as the holotype, the specimen is in three main fragments, two of them corresponding with original illustrations of the species ( Fraser 1941b, pl. 18, figs. 15a, b). Fraser’s description mentions a fragment of the hydroid reaching 83 mm in length, but nothing approaching that size exists in the holotype collection.

Another collection of Plumularia polynema  mentioned in Fraser’s account ( USA, Massachusetts, off Martha’s Vineyard, R/V Fish Hawk Sta. 1038, 39°58’N, 70°06’W; 238 m, 21 September 1881; thought to be material in USNMAbout USNM 24360) was not nominated by him as a type and is excluded from the type series ( ICZN Art. 72.4.6). So too is a collection of the species from off Martha’s Vineyard in the Fraser Hydroid Collection at the RBCMAbout RBCM ( BCPMAbout BCPM 976-00928-001). Both of these collections are listed instead as paratypes ( ICZN Art. 72.1.3).

This little-known hydroid, from the upper continental slope off Martha’s Vineyard, is currently considered a species inquirenda in WoRMS. Although poorly characterized, we prefer to recognize it as valid based on its bathyal type locality. The gonosome of the species remains unknown.

BCPM

British Columbia Provincial Museum

USFC

U. S. Fish Commission

IPA

Empresa Pernambucana de Pesquisa Agropecu�ria, IPA

NMNH

Smithsonian Institution, National Museum of Natural History

USNM

Smithsonian Institution, National Museum of Natural History

RBCM

Royal British Columbia Museum

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Plumulariidae

Genus

Plumularia

Loc

Plumularia polynema Fraser, 1941b

Calder, Dale R. & Choong, Henry H. C. 2018

2018
Loc

Plumularia polynema Fraser, 1941b : 87

Fraser, 1941b : 87