Polyplacophora | Chitonida
Environment / Climate / Range
Demersal; depth range 0 - 10 m (Ref. 290). Subtropical
Eastern Pacific: Canada, Alaska and USA.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 5.7 cm TL male/unsexed; (Ref. 296)
Girdle: moderate width; color, buff to brown. Girdle: Randomly covered with minute, separated spicules with 10-12 thin hairs which are also located at suture and end valves; in addition there are scattered coarse bristles bearing smaller secondary bristles. Color of the valves: Turquoise-blue with orange-red zig-zag bands, green, tan with red markings or any variation of these (Ref. 296).
Depth based on occurrence record; to be replaced with better reference. Often found where there is an active current flow or tidal wash; on the undersides of boulders. May be covered with encrusting sponges, colonial tunicates, coral, bryozoans, and/or encrusting coralline algae; usually not found in association with M. ciliata (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. 115185)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
Low vulnerability (10 of 100)