Abstract
Pseudopolydora antennata was originally described by Claparède (Mem Soc Phys Hist Nat Geneve 20:1–225, 1869) from Teredo burrows in wood from the Gulf of Naples, but has also been recorded in South Africa, the Persian Gulf, South Australia, Japan and the Caribbean. This suggests that the species either has a cosmopolitan distribution, is an alien or, in some locations, represents a complex of morphologically similar species. We demonstrate, with molecular analyses and morphological examinations, that this species is a complex of at least five pseudocryptic species. Two species in South Africa (Pseudopolydora eriyali n. sp. in both the cool and the warm temperate bioregions and Pseudopolydora uphondo n. sp. from the subtropical bioregion) and two in Japan (Pseudopolydora tsubaki n. sp. from central east Japan and Pseudopolydora ushioni n. sp. from southwestern Japan) are consistently confirmed by nuclear 18S and 28S and mitochondrial 16S rRNA gene analyses. Morphological examination demonstrates that these four newly described species and Pseudopolydora hutchingsae n. sp. from South Australia differ from each other and Pseudopolydora antennata from Europe and the Marshall Islands with respect to the ratio of length to number of chaetigers, number of branchiate chaetigers, shapes of prostomium and modified spines, and methyl green staining patterns on the anterior dorsum, caruncle, prostomium, peristomium, and ventral and lateral sides of the body.
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Acknowledgements
CAS would like to thank the staff at the Australian Museum, especially Pat Hutchings, Steve Keable (the collections manager) and Sue Lindsey (of the microscopy unit). WS-O is most grateful to Kenji Okoshi for his collaboration in collecting samples from Izu-Oshima, Japan. Further thanks go to Hannelore Paxton for translating articles and Erica Keppel for kindly loaning us some of her specimens. This work was supported by travel grants awarded to CAS by the Oppenheimer Memorial Trust and the H.B and M.J. Thom Awards. Research funds were provided to CAS by the National Research Foundation (Thuthuka Programme) and Stellenbosch University, and fieldwork in Sodwana Bay was funded by SeaKeys. Research funds were provided to WS-O from the Ministry of Education, Science, Sports and Culture of Japan (21580216, 15K07540). CAS also thanks Sne Kunene and Natasha Mothapo (Stellenbosch University) for their help with naming the South African species. The authors thank the two anonymous reviewers for their many useful recommendations that greatly improved this manuscript.
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Communicated by D. Fiege
This article is registered in ZooBank under: urn:lsid:zoobank.org:pub:69A163E0-822D-4 BC5-B230-ED5F1586E513
The species are registered in ZooBank under:
Pseudopolydora eriyali: urn:lsid:zoobank.org:act:A63B4F2A-4D72-4FEE-A37F-E2EFC0FADE27
Pseudopolydora uphondo: urn:lsid:zoobank.org:act:F6539278-DBC5-44 AC-BCD3-F5D6F9F493FE
Pseudopolydora tsubaki: urn:lsid:zoobank.org:act:CA1E4451-388D-4B4C-A782-D5766DC35132
Pseudopolydora ushioni: urn:lsid:zoobank.org:act:1494F6E0-8200-4EF8-AE4C-B0ED82541231
Pseudopolydora hutchingsae: urn:lsid:zoobank.org:act:A3720C20-FB90-439F-BA1B-2AFC6B511C7A
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Simon, C.A., Sato-Okoshi, W. & Abe, H. Hidden diversity within the cosmopolitan species Pseudopolydora antennata (Claparède, 1869) (Spionidae: Annelida). Mar Biodiv 49, 25–42 (2019). https://doi.org/10.1007/s12526-017-0751-y
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DOI: https://doi.org/10.1007/s12526-017-0751-y
Keywords
- Pseudocryptic species
- Methyl green
- Pseudopolydora eriyali n. sp.
- Pseudopolydora uphondo n. sp.
- Pseudopolydora hutchingsae n. sp.
- Pseudopolydora tsubaki n. sp.
- Pseudopolydora ushioni n. sp.
- 18S, 28S, 16S rRNA analyses