On the paraphyly of Cytaeididae and placement of Cytaeis within the suborder Filifera (Hydrozoa: Anthoathecata)

Prudkovsky, Andrey; Никитин, М. А.; Berumen, Michael L.; Ivanenko, Viatcheslav N.; Reimer, James Davis

doi:10.1007/s12526-016-0534-x

Cited by 8 publications

(10 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Dicoryne is another genus presently classified as a member of Bougainvilliidae due to the presence of exosarc on the hydranth, the gonophore (plesiomorphic), trophosome similar to Bougainvillia and similarity of gonadal development with Bougainvillia superciliaris (L. Agassiz, 1849) (Ashworth & Ritchie, ). However, both our topology and previous works (Cartwright et al., ; Prudkovsky et al., ) contradict a hypothetical bougainvilliid nature of Dicoryne . In fact, Dicoryne has unique characters, not shared with Bougainvilliidae and Pseudothecata (e.g., gonophores on specialised blastostyles and swimming ciliated sporosacs; Schuchert, ).…”

Section: Discussionsupporting

confidence: 55%

“…This is even more important given that the distinctive features in filiferan polyps, such as dimensions and number of tentacles, depend on developmental stage and ecophysiological conditions in which the colony was sampled (Prudkovsky, ; Prudkovsky & Neretina, ). Other characters associated with a general definition of Bougainvilliidae, such as the arrangement of the oral tentacles and the position and development of the gonophores, are also inconsistent with recent molecular analyses that place some species of Cytaeididae as close relatives of species of “Bougainvilliidae” (Prudkovsky, Nikitin, Berumen, Viatcheslav, & Reimer, ).…”

Section: Discussionmentioning

confidence: 83%

See 1 more Smart Citation

Phylogeny and morphological evolution of the so‐called bougainvilliids (Hydrozoa, Hydroidolina)

et al. 2018

View full text Add to dashboard Cite

We present phylogenetic analyses (parsimony, maximum likelihood and Bayesian inference) for 69 lineages of anthoathecate hydroids based on 18 morphological characters (12 proposed for the first time) plus mitochondrial (16S and COI) and nuclear (18S and 28S) molecular markers. This study aims to test the monophyly of the present concept of the family Bougainvilliidae, assessing its phylogenetic position within Hydroidolina. Our working hypothesis is used as a context for inferring the evolution of certain morphological characters, focusing on the exoskeleton. Our results shed light on some phylogenetic uncertainties within Hydroidolina, delimiting eight well‐supported linages, viz. Hydroidolina, Siphonophorae, Leptothecata, Aplanulata, Filifera II, Filifera III, Capitata and Pseudothecata taxon novum, the latter supported by four morphological synapomorphies. The monophyly of several families was not supported, viz. Bougainvilliidae, Cordylophoridae, Oceaniidae, Rathkeidae and Pandeidae. Some of the genera typically considered in Bougainvilliidae, including Bougainvillia, fell into the clade Pseudothecata, which is consistently reconstructed as the sister group of Leptothecata. We formally suggest that Dicoryne be removed from Bougainvilliidae and placed in the resurrected family Dicorynidae. The exoskeleton was a key feature in the diversification of Hydroidolina, especially with the transition from the bare hydranth to one completely enveloped within the exoskeleton. In this context, bougainvilliids exhibit several intermediate states in the development of the exosarc. Although the concatenated analysis unravels some interesting hypotheses, taxon sampling is still deficient and therefore more data are necessary for achieving a more complete understanding of the evolution and ecology of bougainvilliids and their allies.

show abstract

Section: Discussionsupporting

confidence: 55%

Section: Discussionmentioning

confidence: 83%

Phylogeny and morphological evolution of the so‐called bougainvilliids (Hydrozoa, Hydroidolina)

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Their hydroids morphologically resemble those of some genera (e.g., Leuckartiara Hartlaub, 1914, Neoturris Hartlaub, 1914, Halitholus Hartlaub, 1914 assigned to Pandeidae Haeckel, 1879. Moreover, a recent phylogram in Prudkovsky et al (2016) indicates that R. roseum has a much closer affinity with Pandeidae Haeckel, 1879 than with Bougainvilliidae. Included in a clade with R. roseum were Leuckartiara octona (Fleming, 1823), L. nobilis Hartlaub, 1914, Neoturris breviconis (Murbach & Shearer, 1902), Hydrichthys boycei Warren, 1916, Catablema vesicarium (A. Agassiz, 1862, and Garveia nutans Wright, 1859.…”

Section: Reports Of Hydroids From the East Coast Of North America Datmentioning

confidence: 99%

“…Certain other species now assigned to both Rhizorhagium and Garveia are probably also misclassified. For example, Rhizorhagium arenosum (Alder, 1862) has been shown to have affinities with Bougainvilliidae rather than with R. roseum, the genus Rhizorhagium, and the family Pandeidae (Prudkovsky 2016). Similarly, Garveia franciscana resembles bougainvilliids more closely than Garveia and its type species G. nutans.…”

Section: Reports Of Hydroids From the East Coast Of North America Datmentioning

confidence: 99%

Additions to the hydroids (Cnidaria, Hydrozoa) of the Bay of Fundy, northeastern North America, with a checklist of species reported from the region

Calder

2017

Zootaxa

View full text Add to dashboard Cite

Two new species of hydroids, Eudendrium bleakneyi and Halecium praeparvum, are described from the Bay of Fundy. Fourteen others, Tubularia acadiae Petersen, 1990, Coryne pusilla Gaertner, 1774, Sarsia lovenii (M. Sars, 1846), Zanclea implexa (Alder, 1856), Corydendrium dispar Kramp, 1935, Rhizogeton fusiformis L. Agassiz, 1862, Bougainvillia muscus (Allman, 1863), Rhizorhagium roseum M. Sars, in G.O. Sars, 1874, Hydractinia symbiolongicarpus Buss & Yund, 1989, Eudendrium vaginatum Allman, 1863, Tiaropsis multicirrata (M. Sars, 1835), Obelia bidentata S.F. Clark, 1875, Halecium marsupiale Bergh, 1887, and Sertularella gigantea Hincks, 1874, are reported, with collection data, for the first time from the bay. All but Coryne pusilla, Rhizorhagium roseum, Eudendrium vaginatum, and Sertularella gigantea are also new to Atlantic Canada, while Zanclea implexa, Corydendrium dispar, and Halecium marsupiale are reported for the first time in the western North Atlantic. Two of those species, Hydractinia symbiolongicarpus and Obelia bidentata, are disjunct in distribution, with core populations occurring in warmer waters to the south of Cape Cod, Massachusetts. Both were discovered in Minas Basin, a hydrographically distinct embayment where surface water temperatures are much warmer during summer than in the perpetually cold lower Bay of Fundy. Rhizorhagium roseum and the subfamily Rhizorhagiinae are transferred from family Bougainvilliidae Lütken, 1850 to Pandeidae Haeckel, 1879. An annotated checklist of hydroids from the Fundy region, based on previously published reports and on new records of species, is added as an appendix. Included in the checklist are 43 species of anthoathecates and 75 species of leptothecates, referable to 30 families and 56 genera. Families with the most species were Sertulariidae (23), Haleciidae (13), Eudendriidae (11), and Obeliidae (10). Biogeographically, the aggregate hydroid fauna of the bay conforms with that occurring in other parts of the Western Atlantic Boreal Region. Halecium permodicum is proposed as a replacement name for Halecium minor Fraser, 1935, an invalid junior homonym of H. minor Pictet, 1893.

show abstract

“…They can be accurately identified only after examination of the shape of the medusae buds. B. super- were chosen as outgroups (Prudkovsky et al, 2017). Numbers above branches indicate bootstrap values (1000 replicates) (Felsenstein, 1985).…”

Section: Resultsmentioning

confidence: 99%

The first record of Bougainvillia principis (Steenstrup, 1850) (Hydrozoa: Anthoathecata) from the White Sea

Prudkovsky

Neretina

2018

Invertzool

Self Cite

View full text Add to dashboard Cite

Hydroids are common components of fouling communities in the sea, but they are often inconspicuous and easily overlooked. In such cases, the appearance of their medusae in plankton is an obvious indicator of the species' presence in a locality. In this study, we present the first record of medusae Bougainvillia principis from the White Sea. We hypothesize that hydroids of the species B. principis inhabit the White Sea, as well, but they do not usually produce medusae and consequently the species does not exhibit sexual reproduction in the White Sea. How to cite this article:

show abstract

On the paraphyly of Cytaeididae and placement of Cytaeis within the suborder Filifera (Hydrozoa: Anthoathecata)

Cited by 8 publications

References 38 publications

Phylogeny and morphological evolution of the so‐called bougainvilliids (Hydrozoa, Hydroidolina)

Phylogeny and morphological evolution of the so‐called bougainvilliids (Hydrozoa, Hydroidolina)

Additions to the hydroids (Cnidaria, Hydrozoa) of the Bay of Fundy, northeastern North America, with a checklist of species reported from the region

The first record of Bougainvillia principis (Steenstrup, 1850) (Hydrozoa: Anthoathecata) from the White Sea

Contact Info

Product

Resources

About