AnimaliaacceptedorderAccepted
Narcomedusae

Narcomedusae

Haeckel, 1879

GBIF:190510720

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Descriptions(1)

Remarks: The families of the Narcomedusae have recently been reorganized by Lindsay et al. (2017) using DNA data. Bentlage et al. (2018) added more sequences. The 16 S sequences of these studies and the ones from the present study were combined to get a maximum likelihood tree (Fig. 48). Although 16 S has low resolving power above the genus level, some well supported nodes indicate that the Cuninidae and Solmarisidae are polyphyletic as already found by Bentlage et al. (2018). As revision of the families is beyond the scope of this study, we here used the family level taxonomy of Bouillon et al. (2006) and Lindsay et al. (2017), except for the genus Otoporpa.
Schuchert, Peter, Collins, Richard (2021): Hydromedusae observed during night dives in the Gulf Stream. Revue suisse de Zoologie 128 (2): 237-356, DOI: 10.35929/RSZ.0049

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Taxonomic Classification Tree

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Media Files(1)

Fig. 48. Maximum likelihood phylogenetic tree of Narcomedusae obtained with PhyML (GTR+G+I model) and based on about 600 bp positions of the mitochondrial 16S gene. Node-support values are bootstrap values of 100 pseudoreplicates (shown only if> 70%). Sequence labels start with the GenBank numbers (except for identical haplotypes) permitting the retrieval of more information. Some proveniences were obtained from Lindsay et al. (2017) or through personal communications. Red ODEHOV DUH QHZ VHTXHQFHV IURP WKLV VWXG\. &RORXUHG ER[HV LQGLFDWH IDPLO\ DI¿OLDWLRQV DFFRUGLQJ WR WKH FXUUHQWO\ XVHG V\VWHP. (") 'HQRWHV SRVVLEOH PLVLGHQWL¿FDWLRQV.

Imageimage/png© Schuchert, Peter;Collins, RichardSchuchert, Peter;Collins, Richard

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Source Information

Hydromedusae observed during night dives in the Gulf Stream

checklist

This dataset contains the digitized treatments in Plazi based on the original journal article Schuchert, Peter, Collins, Richard (2021): Hydromedusae observed during night dives in the Gulf Stream. Revue suisse de Zoologie 128 (2): 237-356, DOI: 10.35929/RSZ.0049

Abstract: Hydromedusae were photographed and collected during 75 night-time dives in the Gulfstream off Florida. Most of the collected material was used to obtain DNA extracts and subsequently to determine part of the mitochondrial 16S rRNA gene, a barcode marker preferentially used for hydrozoans. The morphological data and the 16S barcodes permitted us to identify 46 species and 6 additional species nameable only to the genus level. Photos and descriptions are provided for all of them and the taxonomy and species status discussed. Six new species are described: Pandeopsis prolifera n. spec., Zanclea mayeri n. spec., Corymorpha floridana n. spec., Staurodiscus luteus n. spec., Octophialucium irregularis n. spec., Solmaris flavofinis n. spec. The new family Wuvulidae is proposed for the genus Wuvula Bouillon, Seghers & Boero, 1988. The new name Aequorea neocyanea is introduced for Zygodactyla cyanea L. Agassiz, 1862 to avoid a secondary homonymy with Aequorea cyanea de Blainville, 1834. Zygodactyla cyanea was considered to be a synonym of Aequorea forskalea Péron & Lesueur, 1810 for most of the 20th century, but we present arguments that it should be kept distinct from the latter and it must be transferred to the genus Aequorea. The genus Otoporpa Xu & Zhang, 1978 is regarded here as congeneric with Pegantha Haeckel, 1879 and its type species Otoporpa polystriata Xu & Zhang, 1978 is therefore changed to Pegantha polystriata (Xu & Zhang, 1978) new comb. Dipleurosoma brooksii Mayer, 1910 is recognized as a new synonym of Staurodiscus kellneri (Mayer, 1910); Staurodiscus heterosceles Haeckel, 1879 as a new synonym of Staurodiscus tetrastaurus Haeckel, 1879; Orchistoma agariciforme Keller, 1884 and Tetracannota collapsum Mayer, 1900 both as new synonyms of Orchistoma pileus (Lesson, 1843). The following Indo-Pacific species are newly recorded for the Atlantic Ocean: Pandeopsis ikarii (Uchida, 1927), Aequorea taiwanensis Zheng et al., 2009; Zygocanna apapillatus Xu, Huang & Guo, 2014; Gastroblasta timida Keller, 1883; Cunina becki Bouillon, 1985; and Pegantha polystriata (Xu & Zhang, 1978). The 16S sequences also permitted us to discover several new links with polyp stages, this for Cirrhitiara superba (Mayer, 1900), Euphysilla pyramidata Kramp, 1955, Zancleopsis dichotoma, and Melicertissa mayeri Kramp, 1959. Detailed, high resolution photos of living medusae were found to be very useful for taxonomic purposes and are mostly preferable to preserved, damaged specimens obtained with plankton nets. Photos of living animals also permit us to better document material used to determine 16S barcodes and make the latter useable for taxonomic revisions.

Schuchert P, Collins R, felipe (2021). Hydromedusae observed during night dives in the Gulf Stream. Plazi.org taxonomic treatments database. Checklist dataset https://doi.org/10.35929/rsz.0049 accessed via GBIF.org on 2026-06-17.

CC0Published 10/21/2021View dataset
GBIF Usage Key
190510720
Dataset Key
172fa5c5-c0c4-4bd7-b710-d608237b8458
Origin
source
Backbone Key
837
Taxon ID
D0118A7C5B5C0044FE84FE97FD807AE1.taxon
Last Crawled
6/9/2026
Last Interpreted
6/9/2026