Dumbbell worm

Weight

Not recorded

Length

Not recorded

Lifespan

Not recorded

Main food

Not recorded

Habitat

Not recorded

Young per litter or clutch

Not recorded

Conservation status

Not recorded

Countries on record

Not recorded

Not recorded

No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.

1. kingdomAnimalia
2. phylumAnnelida
3. classPolychaeta
4. familySternaspidae
5. genusSternaspis
6. SpeciesSternaspis affinis Stimpson, 1864

Catalogue of Life

CompareDumbbell worm vs Bristle wormDumbbell worm vs Sternaspis africanaDumbbell worm vs Sternaspis andamanensisDumbbell worm vs Sternaspis annenkovae

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• Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
  Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf
• Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
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• EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
  Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1
• Global Biotic Interactions (GloBI): interpreted data products · CC0 1.0 · 0.11
  Poelen, J.H., Simons, J.D. & Mungall, C.J. (2014) Global Biotic Interactions: an open infrastructure to share and analyze species-interaction datasets. Ecological Informatics 24: 148–159. https://doi.org/10.1016/j.ecoinf.2014.08.005. Data: https://doi.org/10.5281/zenodo.22691479, with each record's original reference.
• Global Register of Introduced and Invasive Species (GRIIS) · CC BY 4.0 · 2026-11-13
  Pagad, S., Genovesi, P., Carnevali, L., Schigel, D. & McGeoch, M.A. (2018) Introducing the Global Register of Introduced and Invasive Species. Scientific Data 5: 170202. https://doi.org/10.1038/sdata.2017.202. Country checklists published through GBIF by the IUCN SSC Invasive Species Specialist Group.
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  Shirey, V., Larsen, E., Doherty, A. et al. (2022) LepTraits 1.0: a globally comprehensive dataset of butterfly traits. Scientific Data 9: 382. https://doi.org/10.1038/s41597-022-01473-5. Data: https://doi.org/10.6084/m9.figshare.19874602.v1
• Northwestern European arthropod life histories and ecological traits (raw datasets) · CC BY 4.0 · 2024-12-17
  Logghe, G., Batsleer, F., Maes, D. et al. (2025) An in-depth dataset of northwestern European arthropod life histories and ecological traits. Biodiversity Data Journal 13: e146785. https://doi.org/10.3897/BDJ.13.e146785. Data: https://doi.org/10.5281/zenodo.13379714
• Palmer Archipelago penguin measurements (Palmer Station LTER) · CC0 1.0 · 0.1.0
  Gorman, K.B., Williams, T.D. & Fraser, W.R. (2014) Ecological sexual dimorphism and environmental variability within a community of Antarctic penguins (genus Pygoscelis). PLoS ONE 9(3): e90081. https://doi.org/10.1371/journal.pone.0090081. Data: Palmer Station Antarctica LTER, via Horst, A.M., Hill, A.P. & Gorman, K.B. (2020) palmerpenguins. https://doi.org/10.5281/zenodo.3960218
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• Sharkipedia: a curated open access database of shark and ray life history traits · CC BY 4.0 · 1.0-2022-06-17
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• TraitCH: a multi-taxa functional trait dataset for Switzerland and Europe · CC BY 4.0 · 2.0
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• Wikidata · CC0 1.0 · 2026-11-11
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• Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
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• Sex-specific median life expectancies from ex situ populations for 330 animal species · CC BY 4.0 · 2018-07
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@misc{dumbbell_worm_2026,
  title = {Dumbbell worm (Sternaspis affinis)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/dumbbell-worm},
  note = {Data as of 2026-11-14}
}