Cyanoplax dentiens

Cyanoplax dentiens
Cyanoplax dentiens, Pescadero, California, 2026
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Polyplacophora
Order: Chitonida
Family: Lepidochitonidae
Genus: Cyanoplax
Species:
C. dentiens
Binomial name
Cyanoplax dentiens
Dall, 1879[1]
Synonyms
  • Chiton dentiens A. A. Gould, 1846
  • Cyanoplax dentiens cryptica Kues, 1974
  • Lepidochitona dentiens (A. A. Gould, 1846)
  • Trachydermon (Cyanoplax) raymondi Pilsbry, 1894
  • Trachydermon dentiens (A. A. Gould, 1846)
  • Trachydermon pseudodentiens P. P. Carpenter, 1864
  • Trachydermon raymondi Pislbry, 1894

Cyanoplax dentiens, commonly known as the Gould's baby chiton, is a species of chiton found on the sides of intertidal boulders, typically 1 m or more above the 0.0 tide level, from Alaska to La Jolla, San Diego.[2][3]

Description

Gould's baby chiton is one of the most abundant chitons along the west coast of the United States, north of Point Conception, CA, but it is often overlooked due to its small size and inconspicuous coloration.[4] The chiton is no larger than 2.7 cm in length.[3] It is most commonly greenish-gray to brown in color, although this may vary significantly.[3] In fact, the species so well known for its phenotypic variation that some taxonomic guides suggest you may rule out C. dentiens if all the individuals you collect display the same coloration.[4]

Reproduction

Gould's baby chiton is reproductively active during the winter and spring.[5] Although other species of Cyanoplax brood their young, C. dentiens release their eggs directly into the water column where they hatch into free-swimming larvae that later settle and metamorphose into adult chitons.[5]

References

  1. ^ Schwabe, Enrico (2009). "Cyanoplax dentiens (A. A. Gould, 1846)". WoRMS. World Register of Marine Species. Retrieved 17 February 2026.
  2. ^ Clark, Roger N. (2020). "The shallow water chiton fauna of the Salish Sea" (PDF). Festivus. 52 (4): 294--315.
  3. ^ a b c "Family Lepidochitonidae & Schizoplacidae". Pacific Northwest Shell Club. February 25, 2021. Retrieved February 17, 2026.
  4. ^ a b Eernisse, Douglas J (1986). "The genus Lepidochitona Gray, 1821 (Mollusca: Polyplacophora) in the northeastern Pacific Ocean (Oregonian and Californian provinces)" (PDF). Zoologische Verhandelingen. 228 (1): 1--52.
  5. ^ a b Eernisse, Douglas J (1988). "Reproductive patterns in six species of Lepidochitona (Mollusca: Polyplacophora) from the Pacific Coast of North America". The Biological Bulletin. 174 (3): 287--302 – via Marine Biological Laboratory.