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Stephenson, I.; Van Steenkiste, N. W. L.; Leander, B. S. (2019). Molecular phylogeny of neodalyellid flatworms (Rhabdocoela), including three new species from British Columbia. Journal of Zoological Systematics and Evolutionary Research.
304906
10.1111/jzs.12243 [view]
Stephenson, I.; Van Steenkiste, N. W. L.; Leander, B. S.
2019
Molecular phylogeny of neodalyellid flatworms (Rhabdocoela), including three new species from British Columbia
Journal of Zoological Systematics and Evolutionary Research
Publication
Available for editors [request]
Rhabdocoel flatworms are abundant members of marine meiofaunal communities
worldwide, contributing to a reservoir of biodiversity that thrives in sediments and
on macroalgae. Yet, they are relatively understudied due to bias in meiofaunal collection
techniques, time-intensive identification and a lack of taxonomic expertise.
Here, sampling of intertidal habitats in British Columbia, Canada, was undertaken to enhance our understanding of rhabdocoel diversity in this region. Six species of neodalyellid rhabdocoel were discovered and characterized with DNA sequence and morphological data: Pogaina paranygulgus, Anoplodium hymanae, Baicalellia pusilla n. comb., B. solaris n. sp., B. daftpunka n. sp. and Tamanawas kalipis n. g., n. sp. The latter three species are new to science. A phylogenetic analysis of neodalyellid rhabdocoels, inferred from 18S and 28S ribosomal RNA gene sequences of 39 taxa, provided further insight into their interrelationships, trait evolution and systematics, including the recognition of a new genus, Tamanawas, and the suppression of Canetellia and Coronopharynx.
Anoplodium hymanae Shinn, 1983 (additional source)
Baicalellia beauchampi (Ax, 1956) Stephenson, Van Steenkiste & Leander, 2019 (new combination reference)
Baicalellia daftpunka Stephenson, Van Steenkiste & Leander, 2019 (original description)
Baicalellia nana (Ax, 2008) Stephenson, Van Steenkiste & Leander, 2019 (new combination reference)
Baicalellia pusilla (Luther, 1962) Stephenson, Van Steenkiste & Leander, 2019 (new combination reference)
Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019 (original description)
Bresslauilla Reisinger, 1929 (taxonomy source)
Canetellia Ax, 1956 accepted as Baicalellia Nasonov, 1930 (source of synonymy)
Coronopharynx Luther, 1962 accepted as Baicalellia Nasonov, 1930 (source of synonymy)
Eldenia Ax, 2008 (taxonomy source)
Orostylis dohae Gobert, Van Steenkiste & Artois, 2022 (additional source)
Orostylis donanae Van Steenkiste, Gobert & Artois (additional source)
Pogaina paranygulgus Karling, 1986 (additional source)
Tamanawas Stephenson, Van Steenkiste & Leander, 2019 (original description)
Tamanawas halileimonia (Ax, 1960) Stephenson, Van Steenkiste & Leander, 2019 (new combination reference)
Tamanawas helictos (Ax, 1956) Stephenson, Van Steenkiste & Leander, 2019 (new combination reference)
Tamanawas kalipis Stephenson, Van Steenkiste & Leander, 2019 (original description)
Baicalellia beauchampi (Ax, 1956) Stephenson, Van Steenkiste & Leander, 2019 (new combination reference)
Baicalellia daftpunka Stephenson, Van Steenkiste & Leander, 2019 (original description)
Baicalellia nana (Ax, 2008) Stephenson, Van Steenkiste & Leander, 2019 (new combination reference)
Baicalellia pusilla (Luther, 1962) Stephenson, Van Steenkiste & Leander, 2019 (new combination reference)
Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019 (original description)
Bresslauilla Reisinger, 1929 (taxonomy source)
Canetellia Ax, 1956 accepted as Baicalellia Nasonov, 1930 (source of synonymy)
Coronopharynx Luther, 1962 accepted as Baicalellia Nasonov, 1930 (source of synonymy)
Eldenia Ax, 2008 (taxonomy source)
Orostylis dohae Gobert, Van Steenkiste & Artois, 2022 (additional source)
Orostylis donanae Van Steenkiste, Gobert & Artois (additional source)
Pogaina paranygulgus Karling, 1986 (additional source)
Tamanawas Stephenson, Van Steenkiste & Leander, 2019 (original description)
Tamanawas halileimonia (Ax, 1960) Stephenson, Van Steenkiste & Leander, 2019 (new combination reference)
Tamanawas helictos (Ax, 1956) Stephenson, Van Steenkiste & Leander, 2019 (new combination reference)
Tamanawas kalipis Stephenson, Van Steenkiste & Leander, 2019 (original description)
Baltic Sea for Baicalellia pusilla (Luther, 1962) Stephenson, Van Steenkiste & Leander, 2019
Canadian part of the Coastal Waters of Southeast Alaska and British Columbia for Anoplodium hymanae Shinn, 1983
Canadian part of the Coastal Waters of Southeast Alaska and British Columbia for Baicalellia pusilla (Luther, 1962) Stephenson, Van Steenkiste & Leander, 2019
Canadian part of the Coastal Waters of Southeast Alaska and British Columbia for Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Canadian part of the Coastal Waters of Southeast Alaska and British Columbia for Pogaina paranygulgus Karling, 1986
Massachusetts for Baicalellia canadensis Ax & Armonies, 1987
North American Pacific Fijordland for Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Oregon, Washington, Vancouver Coast and Shelf for Anoplodium hymanae Shinn, 1983
Oregon, Washington, Vancouver Coast and Shelf for Baicalellia daftpunka Stephenson, Van Steenkiste & Leander, 2019
Oregon, Washington, Vancouver Coast and Shelf for Baicalellia pusilla (Luther, 1962) Stephenson, Van Steenkiste & Leander, 2019
Oregon, Washington, Vancouver Coast and Shelf for Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Oregon, Washington, Vancouver Coast and Shelf for Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Oregon, Washington, Vancouver Coast and Shelf for Tamanawas kalipis Stephenson, Van Steenkiste & Leander, 2019
Puget Trough/Georgia Basin for Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Puget Trough/Georgia Basin for Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Puget Trough/Georgia Basin for Pogaina paranygulgus Karling, 1986
Puget Trough/Georgia Basin for Pogaina paranygulgus Karling, 1986
Canadian part of the Coastal Waters of Southeast Alaska and British Columbia for Anoplodium hymanae Shinn, 1983
Canadian part of the Coastal Waters of Southeast Alaska and British Columbia for Baicalellia pusilla (Luther, 1962) Stephenson, Van Steenkiste & Leander, 2019
Canadian part of the Coastal Waters of Southeast Alaska and British Columbia for Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Canadian part of the Coastal Waters of Southeast Alaska and British Columbia for Pogaina paranygulgus Karling, 1986
Massachusetts for Baicalellia canadensis Ax & Armonies, 1987
North American Pacific Fijordland for Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Oregon, Washington, Vancouver Coast and Shelf for Anoplodium hymanae Shinn, 1983
Oregon, Washington, Vancouver Coast and Shelf for Baicalellia daftpunka Stephenson, Van Steenkiste & Leander, 2019
Oregon, Washington, Vancouver Coast and Shelf for Baicalellia pusilla (Luther, 1962) Stephenson, Van Steenkiste & Leander, 2019
Oregon, Washington, Vancouver Coast and Shelf for Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Oregon, Washington, Vancouver Coast and Shelf for Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Oregon, Washington, Vancouver Coast and Shelf for Tamanawas kalipis Stephenson, Van Steenkiste & Leander, 2019
Puget Trough/Georgia Basin for Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Puget Trough/Georgia Basin for Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Puget Trough/Georgia Basin for Pogaina paranygulgus Karling, 1986
Puget Trough/Georgia Basin for Pogaina paranygulgus Karling, 1986
Lectotype MZH HLA.75939, identified as Baicalellia pusilla (Luther, 1962) Stephenson, Van Steenkiste & Leander, 2019
Paratype BBM MI4099-4100, identified as Tamanawas kalipis Stephenson, Van Steenkiste & Leander, 2019
Nontype BBM MI4101-4111, identified as Pogaina paranygulgus Karling, 1986
Paratype BBM MI4112–4117, identified as Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Nontype BBM MI4118, identified as Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Paratype BBM MI4119-4120, identified as Baicalellia daftpunka Stephenson, Van Steenkiste & Leander, 2019
Nontype BBM MI4121, identified as Baicalellia pusilla (Luther, 1962) Stephenson, Van Steenkiste & Leander, 2019
Nontype BBM MI4122, identified as Anoplodium hymanae Shinn, 1983
Nontype BBM MI4123, identified as Anoplodium hymanae Shinn, 1983
Holotype SMNH Type-9044, identified as Tamanawas kalipis Stephenson, Van Steenkiste & Leander, 2019
Holotype SMNH Type-9045, identified as Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Holotype SMNH Type-9046, identified as Baicalellia daftpunka Stephenson, Van Steenkiste & Leander, 2019
Paratype BBM MI4099-4100, identified as Tamanawas kalipis Stephenson, Van Steenkiste & Leander, 2019
Nontype BBM MI4101-4111, identified as Pogaina paranygulgus Karling, 1986
Paratype BBM MI4112–4117, identified as Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Nontype BBM MI4118, identified as Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Paratype BBM MI4119-4120, identified as Baicalellia daftpunka Stephenson, Van Steenkiste & Leander, 2019
Nontype BBM MI4121, identified as Baicalellia pusilla (Luther, 1962) Stephenson, Van Steenkiste & Leander, 2019
Nontype BBM MI4122, identified as Anoplodium hymanae Shinn, 1983
Nontype BBM MI4123, identified as Anoplodium hymanae Shinn, 1983
Holotype SMNH Type-9044, identified as Tamanawas kalipis Stephenson, Van Steenkiste & Leander, 2019
Holotype SMNH Type-9045, identified as Baicalellia solaris Stephenson, Van Steenkiste & Leander, 2019
Holotype SMNH Type-9046, identified as Baicalellia daftpunka Stephenson, Van Steenkiste & Leander, 2019
Taxonomy
In the most recent phylogeny of neodalyellids published by Stephenson et al. (2019), Bresslauilla and Eldenia form ... [details]