Halecium tensum 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: 34-35

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-FFC7-FFC6-AEC1-59C0184BFDB6

treatment provided by

Plazi

scientific name

Halecium tensum Fraser, 1941b
status

 

Halecium tensum Fraser, 1941b 

Halecium tensum Fraser, 1941b: 84  , pl. 17, figs. 11a–c.

Holotype. USNM 22926View Materials: USA, Massachusetts, off Martha’s Vineyard, R / V Fish Hawk Sta. 940, 39°54’N, 69°51’30”W, 245 m, 0 4 August 1881, trawl, one polysiphonic colony, ca. 5 cm high, in fair condition, without gonophores, labelled “ type ”; ethanol.GoogleMaps 

Type locality. USA, Massachusetts: off Martha’s Vineyard , 39°54’N, 69°51’30”W, 134 fm (245 m) ( Fraser 1941b).GoogleMaps 

Current status. Valid.

Remarks. From the original description, Fraser (1941b) appears to have established Halecium tensum  on the basis of a single colony. After examination and description, his “ type ” of the species was returned to collections at the NMNHAbout NMNH ( USNMAbout USNM 22926). The specimen count is correctly given as “1” in the online database of that museum, and no other type material is known to exist. While currently listed therein as a syntype, it is taken here to be the holotype by monotypy ( ICZN Art. 73.1.2).

According to Fraser (1941b), this species somewhat resembles Halecium kuekenthali  Marktanner- Turneretscher, 1895, it but differs in having a more rigid and less branched colony as well as longer internodes that lack annulations. Gonophores were lacking in the holotype, and the species has not been reported again. It is listed as valid in WoRMS.

NMNH

Smithsonian Institution, National Museum of Natural History

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Haleciidae

Genus

Halecium

Loc

Halecium tensum Fraser, 1941b

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

2018
Loc

Halecium tensum

Fraser, 1941b : 84