WoRMS source details
Molina-Acevedo, Isabel C.; Carrera-Parra, Luis F. (2017). Revision of Marphysa de Quatrefages, 1865 and some species of Nicidion Kinberg, 1865 with the erection of a new genus (Polychaeta: Eunicidae) from the Grand Caribbean. Zootaxa. 4241(1): 1-62.
261731
10.11646/zootaxa.4241.1.1 [view]
urn:lsid:zoobank.org:pub:D61FB449-287D-4BB3-BAA8-78A9F86749BD [view]
Molina-Acevedo, Isabel C.; Carrera-Parra, Luis F.
2017
Revision of <em>Marphysa</em> de Quatrefages, 1865 and some species of <em>Nicidion</em> Kinberg, 1865 with the erection of a new genus (Polychaeta: Eunicidae) from the Grand Caribbean
Zootaxa
4241(1): 1-62
Publication
World Polychaeta Database (WPolyDb)
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Nine species of Marphysa from the Grand Caribbean Region are recognized and described based on the type and non-type specimens. One species is formally described as new: M. emiliae n. sp., and one is re-established as a valid species: M. fragilis Treadwell, 1911. The diagnosis of Nicidion Kinberg, 1865 is restricted based on novel features of the maxillary apparatus. Nicidion angeli (Carrera-Parra & Salazar-Vallejo, 1998) is redescribed, and two species that previously belonged to Marphysa, are transferred to Nicidion: N. longula (Ehlers, 1887) n. comb. and N. obtusa (Verrill, 1900) n. comb.. A new genus Treadwellphysa n. gen. is proposed to include those species having a newly described type of chaetae named spinifalcigers (exhibiting a mixture of falciger and spiniger blades), the base of maxillae II with a small elevation, and the ventral cirri with swollen base as transverse welt with short digitiform tip. Treadwellphysa n. gen. includes a new species, T. yucatanensis n. sp. and three other species previously included in Marphysa: T. amadae (Fauchald, 1977) n. comb., T. languida (Treadwell, 1921) n. comb., and T. veracruzensis (de León-González & Díaz-Castañeda, 2006) n. comb. Some morphological features are evaluated to clarify their variability with respect to specimen size. A key to Eunicidae genera, and keys to species of Marphysa and Treadwellphysa n. gen. from the Grand Caribbean region are given.
Caribbean region
Systematics, Taxonomy
Marphysa Quatrefages, 1866 (taxonomy source)
Marphysa amadae Fauchald, 1977 accepted as Treadwellphysa amadae (Fauchald, 1977) (status source)
Marphysa aransensis Treadwell, 1939 (redescription)
Marphysa brevitentaculata Treadwell, 1921 (redescription)
Marphysa emiliae Molina-Acevedo & Carrera-Parra, 2017 (original description)
Marphysa escobarae Salazar-Vallejo & Carrera-Parra, 1997 accepted as Marphysa fragilis Treadwell, 1911 (source of synonymy)
Marphysa fragilis Treadwell, 1911 (status source)
Marphysa languida Treadwell, 1921 accepted as Treadwellphysa languida (Treadwell, 1921) (new combination reference)
Marphysa orensanzi Carrera-Parra & Salazar-Vallejo, 1998 (redescription)
Marphysa regalis Verrill, 1900 (redescription)
Nicidion angeli (Carrera-Parra & Salazar-Vallejo, 1998) (redescription)
Nicidion longula (Ehlers, 1887) (status source)
Nicidion obtusa (Verrill, 1900) (status source)
Paramarphysa Ehlers, 1887 accepted as Nicidion Kinberg, 1865 (status source)
Treadwellphysa Molina-Acevedo & Carrera-Parra, 2017 (original description)
Treadwellphysa veracruzensis (de León-González & Castañeda, 2006) (new combination reference)
Treadwellphysa yucatanensis Molina-Acevedo & Carrera-Parra, 2017 (original description)
Marphysa amadae Fauchald, 1977 accepted as Treadwellphysa amadae (Fauchald, 1977) (status source)
Marphysa aransensis Treadwell, 1939 (redescription)
Marphysa brevitentaculata Treadwell, 1921 (redescription)
Marphysa emiliae Molina-Acevedo & Carrera-Parra, 2017 (original description)
Marphysa escobarae Salazar-Vallejo & Carrera-Parra, 1997 accepted as Marphysa fragilis Treadwell, 1911 (source of synonymy)
Marphysa fragilis Treadwell, 1911 (status source)
Marphysa languida Treadwell, 1921 accepted as Treadwellphysa languida (Treadwell, 1921) (new combination reference)
Marphysa orensanzi Carrera-Parra & Salazar-Vallejo, 1998 (redescription)
Marphysa regalis Verrill, 1900 (redescription)
Nicidion angeli (Carrera-Parra & Salazar-Vallejo, 1998) (redescription)
Nicidion longula (Ehlers, 1887) (status source)
Nicidion obtusa (Verrill, 1900) (status source)
Paramarphysa Ehlers, 1887 accepted as Nicidion Kinberg, 1865 (status source)
Treadwellphysa Molina-Acevedo & Carrera-Parra, 2017 (original description)
Treadwellphysa veracruzensis (de León-González & Castañeda, 2006) (new combination reference)
Treadwellphysa yucatanensis Molina-Acevedo & Carrera-Parra, 2017 (original description)
Editor's comment
Molina-Acevedo & Carrera-Parra (2017) have examined the holotype of Paramarphysa longula Ehlers, the type species ... [details]
Etymology
Authors: Treadwellphysa is named "after Aaron Louis Treadwell in recognition for his contributions to the knowledge ... [details]
Grammatical gender
Feminine. As designated by the authors. This follows 'Marphysa', also feminine, where 'physa' is a feminine noun. [details]
