WoRMS source details

Lu, Hua; Fauchald, Kristian. (2000). A phylogenetic and biogeographic study of Euniphysa (Eunicidae, Polychaeta). Journal of Natural History. 34(7): 997-1044.
10.1080/00222930050020113 [view]
Lu, Hua; Fauchald, Kristian
A phylogenetic and biogeographic study of <i>Euniphysa</i> (Eunicidae, Polychaeta)
Journal of Natural History
34(7): 997-1044
World Polychaeta Database (WPolyDb)
Available for editors  PDF available [request]
Fourteen species have either been described in, or referred to, the genus Euniphysa. Seven of these are here re-described based on type material and two new species, E. quadridentata and E. filibranchia, are described. Euniphysa oculata is found to be a subjective synonym of E. spinea, and E. unicusa is a subjective synonym of E. aculeata. Euniphysa taiwanensis and E. megalodus are correctly assigned to the genus, but cannot be described due to lack of material. Euniphysa misakiensis, E. tubicola and E. tubifex are transferred to Eunice. A key is given to the nine identifiable species retained in Euniphysa. Coding strategies for polymorphic and inapplicable characters, as well as problems associated with shared absences, are discussed. A phylogenetic analysis of Euniphysa based on 24 morphological characters yielded two most parsimonious trees (CI = 0.902, RI = 0.905). The tree topology separates Euniphysa into two distinct groups. Group I includes E. filibranchia n. sp., E. italica, E. jeffreysii, E. quadridentata n. sp. and E. spinea, it is supported by five equivocal similarities. Group II is supported by five unequivocal synapomorphies and two equivocal similarities, it includes E. aculeata, E. auriculata, E. falciseta and E. tridontesa. Based on the phylogenetic topology, Paraeuniphysa and Heterophysa are considered as junior synonyms of Euniphysa. The recognition of a separate family for Euniphysa is not warranted. All species of Euniphysa are fragile, shallow, warm water species. They have been collected mainly from sandy sediments of the Northern Hemisphere. The greatest diversity is from the South China Sea area; other species are found throughout the Indian Ocean, the Mediterranean Sea and the East Atlantic Ocean coasts suggesting the genus may have originated in the Tethys Sea. A few species have also been found in the Gulf of Mexico and the West Atlantic Ocean coast again suggesting a Tethyan origin associated with the westward drift of the North American continent.
China Sea
Systematics, Taxonomy
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2013-01-12 18:30:12Z
2015-06-29 12:59:23Z
2015-06-29 21:41:21Z
2018-08-21 11:09:52Z

Eunice impexa Grube, 1878 (taxonomy source)
Eunice jeffreysii McIntosh, 1903 accepted as Euniphysa jeffreysii (McIntosh, 1903) (redescription)
Eunice megalodus Grube, 1878 accepted as Euniphysa megalodus (Grube, 1878) (new combination reference)
Eunice misakiensis (Miura, 1987) (basis of record)
Euniphysa Wesenberg-Lund, 1949 (taxonomy source)
Euniphysa aculeata Wesenberg-Lund, 1949 (redescription)
Euniphysa auriculata (Treadwell, 1900) (redescription)
Euniphysa filibranchia Lu & Fauchald, 2000 (original description)
Euniphysa italica Cantone & Gravina, 1991 (status source)
Euniphysa megalodus (Grube, 1878) (taxonomy source)
Euniphysa misakiensis Miura, 1987 accepted as Eunice misakiensis (Miura, 1987) (new combination reference)
Euniphysa oculata Wu, Sun & Chen, 1979 accepted as Euniphysa spinea (Miura, 1977) (source of synonymy)
Euniphysa quadridentata Lu & Fauchald, 2000 (original description)
Euniphysa spinea (Miura, 1977) (redescription)
Euniphysa tubicola (Treadwell, 1922) accepted as Eunice tubicola (Treadwell, 1922) (status source)
Euniphysa tubifex (Crossland, 1904) accepted as Eunice tubifex Crossland, 1904 (status source)
Euniphysidae Shen & Wu, 1991 accepted as Eunicidae Berthold, 1827 (source of synonymy)
Heterophysa Shen & Wu, 1991 accepted as Euniphysa Wesenberg-Lund, 1949 (source of synonymy)
Heterophysa tridontesa Shen & Wu, 1991 accepted as Euniphysa tridontesa (Shen & Wu, 1991) (new combination reference)
Paraeuniphysa Wu & He, 1988 accepted as Euniphysa Wesenberg-Lund, 1949 (source of synonymy)
Paraeuniphysa falciseta Shen & Wu, 1991 accepted as Euniphysa falciseta (Shen & Wu, 1991) (new combination reference)
Paraeuniphysa taiwanensis Wu & He, 1988 accepted as Euniphysa taiwanensis (Wu & He, 1988) (new combination reference)

(from Lu & Fauchald 2000) "Eunicids with a pair of palps and three antennae, all slender and tapering without ... [details]

 New combination

Fauchald (1992: 217) stated the features of E. megalodus are those found in genus Euniphysa. Lu & Fauchald (2000) ... [details]

 New combination

Bellan (2001) newly used the combination Paraeuniphysa italica, probably unaware that Lu & Fauchald (2000) had just ... [details]


Lu & Fauchald (2000) restate what is known about Eunice megalodus, and they place it as indeterminable as no ... [details]