Halecium nullinodum Fraser, 1935b

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

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-FFC5-AEC1-5FA01D41FCDC

treatment provided by

Plazi

scientific name

Halecium nullinodum Fraser, 1935b
status

 

Halecium nullinodum Fraser, 1935b 

Halecium nullinodum Fraser, 1935b: 109  , pl. 2, fig. 7.

Type. BCPM 976-00489-001: Japan, Okino-se , shoal outside of Sagami Bay, 22 September 1933, 91  – 110 m, labelled "type"; dry.

Type locality. Japan: Okino-se , outside of Sagami Bay, 100–150 m ( Fraser 1935b). 

Current status. Valid.

Remarks. Material of this species, from the collection of Emperor Hirohito, was sent to Fraser for identification by Dr. Hirotaro Hattori. While no specimens of Halecium nullinodum  are listed in collections at the NMNSAbout NMNS, Arai (1977) listed two collections of the species in the Fraser Hydroid Collection at the RBCMAbout RBCM ( BCPMAbout BCPM 976-00489-001; BCPMAbout BCPM 976-00489-002). However, one of these ( BCPMAbout BCPM 976-00489-002), on a slide, bears only a campanulariid colony. Specimens referable to Halecium  are lacking on it, and the slide may have been mislabelled originally. The only known type material of Halecium nullinodum  is therefore that in a vial at the RBCMAbout RBCM ( BCPMAbout BCPM 976-00489-001), now dry and in very poor condition. It is unclear whether that material comprises one or more than one specimen, and whether it constitutes a holotype by monotypy or syntypes. We are therefore unable to resolve the type status of the collection. In our opinion, a neotype is needed given its unsatisfactory condition.

The trophosome and female gonophores of Halecium nullinodum  were described by Fraser (1935b). He did not observe males. Hirohito (1995: 16) regarded H. nullinodum  as “a problematic species”, including it with question as a synonym of H. sessile Norman, 1867  . Fraser’s species is listed as valid in WoRMS.

NMNS

National Museum of Natural Science

RBCM

Royal British Columbia Museum

BCPM

British Columbia Provincial Museum

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Haleciidae

Genus

Halecium

Loc

Halecium nullinodum Fraser, 1935b

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

2018
Loc

Halecium nullinodum

: 109