Hebella eximia Fraser, 1944a

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: 40

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-FFC1-FFC3-AEC1-5FA01898FCF0

treatment provided by

Plazi

scientific name

Hebella eximia Fraser, 1944a
status

 

Hebella eximia Fraser, 1944a 

Hebella  (?) eximia Fraser, 1944a: 207  , pl. 39, figs. 185a, b.

Holotype. MCZ-IZ 9067: Dominica, USCSS Blake Sta. 185, 15°24’55”N, 61°27’10”W, 333 fm (609 m), 27 January 1879, coll. A. Agassiz; ethanol (specimen now missing from its vial).GoogleMaps 

Type locality. Dominique ( Dominica): 15°24’55”N, 61°27’10”W, 333 fm (609 m) ( Fraser 1944a).GoogleMaps 

Current status. Species inquirenda.

Remarks. While no name-bearing types of Hebella  (?) eximia  were designated by Fraser (1944a), the online catalogue at MCZAbout MCZ records type material of the species in the collection (MCZ-IZ 9067). That record does not specify the number of colonies, but Fraser’s (1944a) description was of a single colony. No types or other specimens were located elsewhere, including the Fraser Hydroid Collection at the RBCMAbout RBCM. The MCZAbout MCZ specimen, apparently the holotype by monotypy ( ICZN Art. 73.1.2), is now missing from its bottle. The vial originally containing it was carefully checked twice during this study, but no hydroids of H. eximia  were found.

Fraser (1944a) founded Hebella eximia  in his book on hydroids of the western North Atlantic. No gonosome was present, and he was uncertain of its generic affinities. Boero et al. (1997) referred it to the synonymy of H. scandens ( Bale, 1888)  , given the resemblance of its trophosome to that species. Their conclusion has been upheld in the current WoRMS list. Based on Fraser’s account of the morphology of its hydrothecae, however, and the considerable depth from which it was collected, it may well be distinct. It is held here to be a species inquirenda. With the holotype now missing, designation of a neotype, following provisions of the ICZN, seems desirable if the species is re-discovered.

MCZ

Museum of Comparative Zoology

RBCM

Royal British Columbia Museum

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Hebellidae

Genus

Hebella

Loc

Hebella eximia Fraser, 1944a

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

2018
Loc

Hebella

: 207