Hydrozoa taxon details

Checked: verified by a taxonomic editorDiphasia pinastrum (Cuvier, 1830) 
AphiaID: 117882

Classification: Biota > Checked: verified by a taxonomic editorAnimalia > Checked: verified by a taxonomic editorCnidaria > Checked: verified by a taxonomic editorHydrozoa > Checked: verified by a taxonomic editorHydroidolina > Checked: verified by a taxonomic editorLeptothecata > Checked: verified by a taxonomic editorSertulariidae > Checked: verified by a taxonomic editorDiphasia
Status Unaccepted: synonym, or anything that is not accepted unaccepted (questionable synonym)
Accepted name  Checked: verified by a taxonomic editorDiphasia margareta (Hassall, 1841)
Rank Species
Parent Checked: verified by a taxonomic editorDiphasia Agassiz, 1862
Synonymised
names
  Checked: verified by a taxonomic editorSertularia pinaster Ellis & Solander, 1786 (invalid junior homonym of Sertularia pinaster Lepechin, 1783)
Sources  basis of record van der Land, J.; Vervoort, W.; Cairns, S.D.; Schuchert, P. (2001). Hydrozoa, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 112-120 (look up in IMIS[details]

[show all]
Environment marine
Distribution 
From other sources
Mediterranean Sea
Unreviewed: has not been verified by a taxonomic editorMediterranean Sea [details]
North Atlantic Ocean
Unreviewed: has not been verified by a taxonomic editorEuropean waters (ERMS scope) [details]
Unreviewed: has not been verified by a taxonomic editorNorth West Atlantic [details]
Links Unreviewed: has not been verified by a taxonomic editorTo Biodiversity Heritage Library (1 publication) 
Unreviewed: has not been verified by a taxonomic editorTo Encyclopedia of Life 
Unreviewed: has not been verified by a taxonomic editorTo GenBank (3 nucleotides; 0 proteins) 
Unreviewed: has not been verified by a taxonomic editorTo PESI 
Unreviewed: has not been verified by a taxonomic editorTo ITIS
Note 
From editor or global species database
Checked: verified by a taxonomic editorTaxonomy Cuviers spelling is regarded as a new name for the preoccupied name Sertularia pinaster Ellis & Solander, 1786.

There are two similar but clearly distinct and easily distinguishable Diphasia species in the NE Atlantic
Diphasia alata Hincks (1855) and
Diphasia margareta (Hassal, 1841).

The situation of Diphasia pinastrum (Cuvier, 1830) [= S. pinaster Ellis & Solander, 1786] is debatable.
Although Ellis & Solander (1786) depict hydrothecae with a sharp kink - typical for D. alata - two other details strongly argue in favour that Ellis and Solander had rather Diphasia margareta and not D. alata:
- the gonothecae are much too big for D. alata: the latter species as very small gonothecae (max 0.7 mm), not much larger than the hydrotheca. This is well illustrated in Hincks (1868: pl 48 fig. 2a) and has been checked for several other samples. The gonothecae of D. margareta are 2- 4 mm in length (comp. data in Cornelius 1979)
- the spacing of the hydrothecal pairs is too wide for D. alata: the latter species has a very tight spacing of the hydrothecal pairs, while they are much wider spaced in D. margareta.

Cornelius (1995b: 35) has concluded otherwise, but he was perhaps mislead by the schematic drawings of the hydrothecae in Ellis & Solander (1786).
For the sake of nomenclatural stability, it is thus best to continue the use as given in Cornelius (1995b) and use the names Diphasia alata Hincks (1855) and Diphasia margareta (Hassal, 1841), while Sertularia pinaster Ellis & Solander, 1786 should be regarded as a questionable synonym of Diphasia margareta.
 [details]
ImageChecked: verified by a taxonomic editor 
Sertularia pinaster from Ellis & Solander (1786)
Sertularia pinaster fr...
[image from synonym]
LSID urn:lsid:marinespecies.org:taxname:117882
Taxonomic
Edit history
 
Date   action   by
2004-12-21 15:54:05Z  created  van der Land, Jacob
2012-02-16 13:24:12Z  changed  Schuchert, Peter
  
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  Citation: Schuchert, P. (2014). Diphasia pinastrum (Cuvier, 1830). In: Schuchert, P. (2014) World Hydrozoa database. Accessed through: Schuchert, P. (2014) World Hydrozoa database at http://www.marinespecies.org/hydrozoa/aphia.php?p=taxdetails&id=117882 on 2014-08-29