Prophysaon foliolatum

Prophysaon foliolatum
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Ariolimacidae
Genus: Prophysaon
Species:
P. foliolatum
Binomial name
Prophysaon foliolatum
(A. Gould, 1851)
Synonyms

Arion foliolatus A.Gould, 1851

Prophysaon foliolatum, or the yellow-bordered taildropper, is a slug in the genus Prophysaon, native to North America, ranging from Alaska to Oregon.[1][2][3][4][5][6]

Appearance

This species is an overall dull brown colored slug, with a yellow line bordering its mantle. The similar species P. andersonii does not have this yellow border.[6][1][7]

Forms

There is a Canadian color form that is almost black, but it can still be distinguished by the bright yellow border the mantle.[8][6]

Albino individuals have been spotted on the Olympic coast.[9]

References

  1. ^ a b "Prophysaon foliolatum (Yellow-bordered Taildropper)". 10,000 Things of the Pacific Northwest. 2022-01-13. Retrieved 2026-01-06.
  2. ^ "Prophysaon foliolatum (A.Gould, 1851)". www.gbif.org. Retrieved 2026-01-06.
  3. ^ "Yellow-bordered Taildropper Slug Prophysaon foliolatum". Wild Columbia County. 2020-08-09. Retrieved 2026-01-06.
  4. ^ "Yellow-bordered Taildropper (Prophysaon foliolatum) | U.S. Fish & Wildlife Service". www.fws.gov. Retrieved 2026-01-06.
  5. ^ Ingram, Dave (2010-08-11). "Taildroppers". Island Nature. Retrieved 2026-01-06.
  6. ^ a b c budlogan (2020-10-01). "Yellow Bordered Tail Dropper Slug, Gastropods, Vancouver Island". Retrieved 2026-01-06.
  7. ^ "Occurrence Detail 5006890788". www.gbif.org. Retrieved 2026-01-06.
  8. ^ "Occurrence Detail 2901511788". www.gbif.org. Retrieved 2026-01-06.
  9. ^ "Occurrence Detail 2963901512". www.gbif.org. Retrieved 2026-01-06.
  • Gould, A.A. (1851). The terrestrial air-breathing mollusks of the United States, and the adjacent territories of North America. Vol. 2. Little, Brown and Company, Boston. 1-366.