WoRMS source details

Kroesche, Rachel; Rouse, Greg W. (2025). Four New Species of Hesionidae (Annelida, Polychaeta, Phyllodocida) from Eastern Pacific Chemosynthetic Habitats and Reinstatement of Vrijenhoekia. Diversity. 17(2: 121): 1-30.
505525
10.3390/d17020121 [view]
Kroesche, Rachel; Rouse, Greg W.
2025
Four New Species of Hesionidae (Annelida, Polychaeta, Phyllodocida) from Eastern Pacific Chemosynthetic Habitats and Reinstatement of Vrijenhoekia
Diversity
17(2: 121): 1-30
Publication
Annelidabase
Hesionid polychaetes are well known at hydrothermal vents, methane seeps, and unusual habitats such as whale falls. In 1985, Sirsoe grasslei was the first hesionid to be named from a hydrothermal vent. Vrijenhoekia was erected in 2008 for a closely related species from a whale fall. Further species of Sirsoe and Vrijenhoekia were described in the following decade and the genera were recovered as reciprocally monophyletic with DNA data. However, Sirsoe was made a senior synonym of Vrijenhoekia when 10 further new species from the clade were named from off the coast of Brazil. To further evaluate the status of Sirsoe and Vrijenhoekia, we present the first DNA data for the type species of Sirsoe, S. grasslei. Our results allow the reinstatement of Vrijenhoekia and emended diagnoses for Sirsoe and Vrijenhoekia. Four new species, three in Sirsoe and one in Vrijenhoekia, are also described.
East Pacific
Molecular systematics, Molecular biology
Systematics, Taxonomy
RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)
Date
action
by
2025-02-17 04:32:39Z
created

Sirsoe Pleijel, 1998 (taxonomy source)
Sirsoe grasslei (Blake, 1985) (taxonomy source)
Sirsoe pleijeli Kroesche & Rouse, 2025 (original description)
Sirsoe sapote Kroesche & Rouse, 2025 (original description)
Sirsoe shastae Kroesche & Rouse, 2025 (original description)
Vrijenhoekia Pleijel, Rouse, Ruta, Wiklund & Nygren, 2008 (taxonomy source)
Vrijenhoekia ahabi Summers, Pleijel & Rouse, 2015 (status source)
Vrijenhoekia alphacrucis (Shimabukuro, Carrerette, Alfaro-Lucas, Rizzo, Halanych & Sumida, 2021) (new combination reference)
Vrijenhoekia alphadelphini (Shimabukuro, Carrerette, Alfaro-Lucas, Rizzo, Halanych & Sumida, 2021) (new combination reference)
Vrijenhoekia balaenophila Pleijel, Rouse, Ruta, Wiklund & Nygren, 2008 (status source)
Vrijenhoekia besnard (Shimabukuro, Carrerette, Alfaro-Lucas, Rizzo, Halanych & Sumida, 2021) (new combination reference)
Vrijenhoekia falenothiras Summers, Pleijel & Rouse, 2015 (status source)
Vrijenhoekia ketea Summers, Pleijel & Rouse, 2015 (status source)
Vrijenhoekia mindiae Kroesche & Rouse, 2025 (original description)
Vrijenhoekia nadir (Shimabukuro, Carrerette, Alfaro-Lucas, Rizzo, Halanych & Sumida, 2021) (new combination reference)
Vrijenhoekia pirapuan (Shimabukuro, Carrerette, Alfaro-Lucas, Rizzo, Halanych & Sumida, 2021) (new combination reference)
Vrijenhoekia ungava (Shimabukuro, Carrerette, Alfaro-Lucas, Rizzo, Halanych & Sumida, 2021) (new combination reference)
Vrijenhoekia yokosuka (Shimabukuro, Carrerette, Alfaro-Lucas, Rizzo, Halanych & Sumida, 2021) (new combination reference)
Vrijenhoekia ypupiara (Shimabukuro, Carrerette, Alfaro-Lucas, Rizzo, Halanych & Sumida, 2021) (new combination reference)
Holotype ICML-UNAM ICML-EMU 13999, geounit Gulf of California, identified as Sirsoe pleijeli Kroesche & Rouse, 2025
Holotype ICML-UNAM ICML-EMU 14000, geounit Gulf of California, identified as Sirsoe sapote Kroesche & Rouse, 2025
Holotype ICML-UNAM ICML-EMU 14001,, geounit Gulf of California, identified as Sirsoe shastae Kroesche & Rouse, 2025
Holotype SIO-BIC A9606, geounit Costa Rica, identified as Vrijenhoekia mindiae Kroesche & Rouse, 2025
Holotype USNM 81808-9, geounit Gulf of California, identified as Orseis grasslei Blake, 1985
 Diagnosis

Psamathinae with or without dorsally inserted median antenna, eyes absent, frontal tubercle and glandular lip pads ... [details]

 Diagnosis

Original diagnosis by Pleijel et al (2008): As for species: Apomorphies: Three pairs of large glandular lip pads ... [details]

 Distribution

Vrijenhoekia mindiae has been found at methane seeps at ~990–1400 m off the Pacific coast of Costa Rica and at ... [details]

 Editor's comment

Vrijenhoekia was treated here as a synonym of Sirsoe based on Shimbukuro et al 2019. However, Georgieva et al ... [details]

 Editor's comment

Georgieva et al (2023) added a further Vrijenhoekia species although Shimbukuro et al (2021, 2019) had earlier ... [details]

 Etymology

Orseis grasslei is named after Frederick Grassle, Woods Hole Oceanograph institute [details]

 Etymology

Authors: Sirsoe pleijeli is named for "Fredrik Pleijel who erected the genus Sirsoe and devoted much time to the ... [details]

 Etymology

Sirsoe sapote is named after the sapote (Pouteria sapota) a type of fruit native to Mexico. Noun in apposition. ... [details]

 Etymology

Sirsoe shastae is named after Rachel Kroesche's pet female cat. [details]

 Etymology

Vrijenhoekia mindiae is named after of Mindi Summers who first informally led the description of this species as ... [details]

 Nomenclature

The authors' heading for Sirsoe sapote does not indicate it is a new species. This is contrary to Code article ... [details]

 Status

After the generic transfers suggested by Kroesche & Rouse (2025) the species content of Vrijenhoekia is as ... [details]

 Synonymy

Strictly the type species of Vrijenhoekia, V. balaenophila places within Sirsoe according to phylogeny figures ... [details]

 Taxonomy

Orseis grasslei (now Sirsoe grasslei) is the type species of Sirsoe but important genetic characterisation was ... [details]

 Taxonomy

Kroesche and Rouse (2025) state that: "Sirsoe shastae n. sp. was found to be a sister group to S. pleijeli n. sp., ... [details]

 Type locality

Bejeweled Mound, south of the JaichMaa ‘ja’ag Vent Field, Pescadero Basin, Gulf of California, 23.936 N, ... [details]

 Type locality

Matterhorn and Z Vent, Auka Vent Field, Pescadero Basin, Gulf of California, 23.954 N, 108.863, 3655 m depth [details]

 Type locality

Weey ’kual (Red Hill), JaichMaa ‘ja’ag Vent Field, Pescadero Basin, Gulf of California, 23.940 N, 108.856 W, ... [details]

 Type locality

Bone, wood, and chips experimental deployment, Costa Rica, off Pacific coast, 8.93 N, 84.312 W, 992 m depth, ... [details]