Polyplacophora | Chitonida
Environment: milieu / climate zone / depth range / distribution range
Benthic; depth range 0 - 72 m (Ref. 290). Subtropical
Eastern Pacific: Canada, USA and Alaska.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 2.5 cm TL male/unsexed; (Ref. 296)
Girdle: scaled, where the scales are larger near the valves progressing down in size to smaller ones near the outer edge. Lateral areas: Not distinctly defined. Surface: smooth, even though it looks smooth to the naked eye, is minutely granulated. Mucro: Anti-median. This chiton highly colored and greatly variable (Ref. 296). Tegmentum color: Variable, mostly uniformly creamy yellow, orange, or reddish brown, or dark olive with whitish and brownish streaks radiating from the apices; some are completely white or black, and some have a combination of colors, often with ultramarine blue (Ref. 290).
Members of the class Polyplacophora are mostly gonochoric. Life cycle: Eggs hatch into lecitotrophic planktonic trocophore larvae (no veliger stage) which later metamorphose and settle on the bottom as young adults (Ref. 833).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the class Polyplacophora are mostly gonochoric. Life cycle: Eggs hatch into lecitotrophic planktonic trocophore larvae (no veliger stage) which later metamorphose and settle on the bottom as young adults.
Burghardt, G. and L. Burghardt. 2006. (Ref. 296)
IUCN Red List Status (Ref. 120744)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
): 6.9 - 10.7, mean 8.9 (based on 98 cells).
Low vulnerability (10 of 100)