Polyplacophora | Chitonida
Environment: milieu / climate zone / depth range / distribution range
Benthic; depth range 0 - 100 m (Ref. 290). Temperate
Pacific Ocean: Alaska, Mexico, Canada and northern Japan.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 5.1 cm TL male/unsexed; (Ref. 296)
Girdle: Medium wide with smooth, compact, solid, oval scales. Mucro: Central and low. Central areas: Narrow, parallel riblets with faint netting between. Lateral areas: Sharply defined having radian rows of pustules. Tail valve: Radially riblets posterior of murco and netting anteriorly. Head valve: Radially ribbed. Color of shell: Ranges from orange-red to claret-red or dull green sometimes with white markings. Girdle color: Similar in color to the valves (Ref. 296).
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
): 5.7 - 21.2, mean 12.2 (based on 504 cells).
Low vulnerability (10 of 100)