Eucuspidella Fraser, 1944a
publication ID |
https://doi.org/ 10.11646/zootaxa.4487.1.1 |
publication LSID |
lsid:zoobank.org:pub:524B23B9-8EAA-4BD6-8937-A1B8F1C057B9 |
DOI |
https://doi.org/10.5281/zenodo.5968370 |
persistent identifier |
https://treatment.plazi.org/id/0392282A-FFFC-FFFE-AEC1-5D8C1BA9FA59 |
treatment provided by |
Plazi |
scientific name |
Eucuspidella Fraser, 1944a |
status |
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Genus Eucuspidella Fraser, 1944a View in CoL
Eucuspidella Fraser, 1944a: 172 View in CoL .
Type species. Cuspidella pedunculata Αllman, 1877, by monotypy.
Current status. Valid.
Remarks. Fraser (1944a) concluded that Cuspidella pedunculata Allman, 1877 exceeded the bounds of the genus Cuspidella Hincks, 1866 in having a pedicellate rather than a sessile hydrotheca. He therefore established Eucuspidella for the species. Other characters distinguishing the genus were a tubular or fusiform hydrotheca that merged imperceptibly with the pedicel, opercular valves with no demarcation from the hydrothecal wall, and the absence of a diaphragm and nematophores. Gonophores of E. pedunculata , a minute species reported from bathyal waters (475 m) off the Dry Tortugas, Florida (Allman 1877), and with some uncertainty from 4798 m in the Windward Passage north of Haiti ( Vervoort 1972), remain unknown.
Eucuspidella View in CoL has been provisionally upheld as valid in some works ( Vervoort 1972; Calder 1996; Bouillon et al. 2006). In others, it has been assigned to the synonymy of Campanulina Van Beneden, 1847 View in CoL and to the family Campanulinidae Hincks, 1868 View in CoL (e.g., WoRMS). That assignment is untenable given that Campanulina tenuis Van Beneden, 1847 , a widely misconceived hydrozoan having decidedly different morphological characters (see Rees 1939: 435–437; Calder 1991:5, 6), is the type species of that genus. Meanwhile, the family Campanulinidae Hincks, 1868 View in CoL , as originally defined, is based on a misidentified type genus ( Campanulina sensu Allman, 1864 View in CoL , not Campanulina Van Beneden, 1847 View in CoL ). Widespread taxonomic confusion thus persists at present over the concepts of both Campanulina View in CoL and Campanulinidae View in CoL . As for its phylogenetic affinities, Eucuspidella View in CoL cannot be assigned at present with confidence to any known family.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Eucuspidella Fraser, 1944a
Calder, Dale R. & Choong, Henry H. C. 2018 |
Eucuspidella
Fraser, 1944a : 172 |