The identity of two tubularian hydroids from Australia with a description and observations of the reproduction of Ralpharia magnifica gen. et sp. nov

Watson, Jeanette E.

doi:10.24199/j.mmv.1980.41.04

Cited by 13 publications

(23 citation statements)

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“…A step from the simple basal disc resembling that seen in E. dumortieri, but so different in the details of the ontology that it should be regarded as belonging to a separate transformation series, is found in the species of Ralpharia and Serehyba, where the newly-settled actinula sends out a stolon which penetrates the tissues of the gorgonian host (Watson, 1980;da Silveira & Migotto, 1984).…”

Section: Character States and Tranflormation Series Polaritiesmentioning

confidence: 99%

Evolution and taxonomy in capitate hydroids and medusae (Cnidaria: Hydrozoa)

Petersen

1990

Zoological Journal of the Linnean Society

129

352

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A cladistic analysis of Capitata groups the families in four suborders based on medusa characters (such as manubrium morphology, position of gonads, and position and number of marginal tentacles) and hydroid characters (such as presence or absence of an oral tentacle whorl, and the different development of the tentacles of the oral and aboral whorls). On the family and generic levels, the revision results in changes which unite the separate hydroid and medusa taxonomic systems, defining genera which are not based on characters solely relating to the reduction of medusae to fixed gonophores. In those families where the reduction of the medusa can be analysed, it is shown that the reduction occurred after all synapomorphies defining the genera had evolved and usually affected individual species within a genus rather than the original species from which the other species in the genus evolved. This supports the view that medusa reduction is not in itself a valid generic character. A discussion of the theories of ‘inconsistent’ or ‘mosaic’ evolution concludes that no difference in evolutionary rate or degree of specialization can be demonstrated among taxa with free medusae and taxa with gonophores.

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Section: Character States and Tranflormation Series Polaritiesmentioning

confidence: 99%

Evolution and taxonomy in capitate hydroids and medusae (Cnidaria: Hydrozoa)

Petersen

1990

Zoological Journal of the Linnean Society

129

352

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“…Re-examination of this material proved the species not to be T. larynx but a new hydroid, Ralpharia magnifi ca (Watson, 1980). While there is still some doubt about the relationship of Tubularia ralphii with Ectopleura crocea, it is likely that both are the same species (Watson 1999).…”

Section: Introductionmentioning

confidence: 99%

“…Six species of hydroids of the family Tubulariidae (Allman, 1864) have been recorded from temperate southern Australia: Tubularia larynx Ellis andSolander, 1786 [= Ectopleura larynx (Ellis andSolander, 1786)]; Ectopleura crocea (Agassiz, 1862), Tubularia ralphii Bale, 1884;Zyzzyzus spongicolus (von Lendenfeld 1884); Tubularia exxonia Watson, 1978; Ralpharia magnifi ca Watson, 1980; Ralpharia coccinea Watson, 1984 and Hybocodon cryptus Watson, 1984.…”

Section: Introductionmentioning

confidence: 99%

Lobataria newtoni gen. et sp. nov., (Hydrozoa, Anthoathecata, Tubulariidae) from southern Australia

Watson¹

2008

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“…(Pennycuick 1959); Port Phillip Bay, Vic. (Ralph 1966;Black 1971;Watson 1980;Hewitt et a1. 2004); Sydney Harbour, Port Kembla, NSW (Watson 1980(Watson , 1999; Launceston, Tas.…”

Section: Distribution Elsewherementioning

confidence: 99%