Pseudopotamilla Bush 1905
Description
Genus Pseudopotamilla Bush, 1905
Remarks. Pseudopotamilla is represented by some boring species in rocks and dead coral, and characterized by the presence of unpaired proximal compound radiolar eyes on the outer margins of radioles. The type species, Pseudopotamilla reniformis (Bruguière, 1789), was originally described from Iceland and has been subsequently reported from the Caribbean Sea, European waters, American coasts of North and South Atlantic, Arctic, and North Pacific (Kolbasova et al. 2013 and references therein).
As shown in her poster presented during the 8th International Polychaeta Conference in Madrid, Knight-Jones, Darbyshire and Petersen were working on the designation of a neotype for Pseudopotamilla reniformis and the resurrection of two species previously synonymized with P. reniformis (Knight-Jones et al. 2004); however, Knight-Jones and Petersen died before this work was completed, but the designation of a neotype is now under revision (Knight-Jones et al. 2017). In addition, records of P. reniformis from the Caribbean area were corrected as P. fitzhughi (Tovar-Hernández & Salazar-Vallejo, 2006), and those from Australia were reassigned as Pseudopotamilla sp. A and sp. B by Capa (2007), showing that some misidentifications of Pseudopotamilla species have occurred. A full revision of Pseudopotamilla is needed in order to confirm the distribution of P. reniformis.
Pseudopotamilla was emended by Capa (2007). The genus includes 16 species (Capa et al. 2014), but only one was described from South America: P. polyophthalma Hartmann-Schröder, 1965 from Punta Lavapie (Central Chile) to 58 m depth. In the present paper, a new species of Pseudopotamilla is described from Argentina, and Potamilla platensis Hartman, 1953, is transferred to Pseudopotamilla and redescribed. Pseudopotamilla platensis is commonly found in translucent, chitinous tubes with an external layer of sand grains, from intertidal to 200 m depth, whereas P. knightjonesae sp. nov., was collected intertidally in hard sediment matrix.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Sabellidae
- Genus
- Pseudopotamilla
- Kingdom
- Animalia
- Order
- Sabellida
- Phylum
- Annelida
- Scientific name authorship
- Bush
- Taxon rank
- genus
- Type status
- holotype
- Taxonomic concept label
- Pseudopotamilla Bush, 1905 sec. Tovar-Hernández, León-González & Bybee, 2017
References
- Bush, K. J. (1905) Tubicolous annelids of the tribes Sabellides and Serpulides from the Pacific Ocean. Harriman Alaska Expedition, 12, 169 - 346.
- Bruguiere, L. G. (1789) Encyclopedie Methodique. Vol. 1. Part 1. Histoire naturelle des vers, Paris, 344 pp.
- Kolbasova, G. D., Tzetlin, A. B. & Kupriyanova, E. K. (2013) Biology of Pseudopotamilla reniformis (Muller, 1771) in the White Sea, with description of asexual reproduction. Invertebrate Reproduction & Development, 57, 264 - 275. https: // doi. org / 10.1080 / 07924259.2012.759164
- Knight-Jones, P., Darbyshire, T. & Petersen, M. E. (2004) What is Pseudopotamilla reniformis (Sabellidae)? Comparisons of populations from Britain, Iceland and Nova Scotia. Poster presented during the VIII International Polychaeta Conference, Madrid, Spain. [poster]
- Knight-Jones, P., Darbyshire, T., Petersen, M. E. & Tovar-Hernandez, M. A. (2017) What is Pseudopotamilla reniformis (Sabellidae)? Comparisons of populations from Britain, Iceland and Canada with comments on Eudistylia and Schizobranchia. Zootaxa, 4254 (2), 201 - 220.
- Tovar-Hernandez, M. A. & Sosa-Rodriguez, T. (2006) Redescription of Chone infundibuliformis Kroyer, 1856 (Polychaeta: Sabellidae) and histology of the branchial crown appendages, collar and glandular ridge. Zootaxa, 1115, 31 - 59.
- Capa, M. (2007) Taxonomic revision and phylogenetic relationships of apomorphic sabellids (Sabellidae: Polychaeta) from Australia. Invertebrate Systematics, 21, 537 - 567.
- Capa, M., Giangrande, A., Nogueira, J. M. M. & Tovar-Hernandez, M. A. (2014) Sabellidae Latreille, 1825. In: Westheide, G. & Purschke, G. (Eds.), The Handbook of Zoology. De Gruyter, Germany. Available from: http: // www. degruyter. com / view / Zoology / bp _ 029147 - 6 - 62 (accessed 23 November 2015)
- Hartmann-Schroder, G. (1965) Zur Kentnnis des Sublitorals der chilenischen Kuste, unter besonderer Berucksichtigung der Polychaeten und Ostracoden. Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut, 62, 59 - 305.
- Hartman, O. (1953) Non-pelagic polychaeta of the Swedish Antarctic Expedition 1901 - 1903. Further Zoological Results of the Swedish Antarctic Expedition 1901 - 1903, 4, 1 - 83.