Polyplacophora | Chitonida
Environment / Climate / Range
Demersal; depth range 0 - 60 m (Ref. 289). Subtropical
Northwest Pacific: Kuril Islands, Korea, Japan, China, and Russia.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 5.1 cm TL male/unsexed; (Ref. 283)
Body oval in shape; moderately elevated. Valve reddish, maculated with dark brown or black or occasionally blotched with creamy white. Lateral areas sculptured with many, mostly bifurcating, low, radiating ribs, bearing sparse, minute, glossy pustules. Central area with sixty five, longitudinal riblets. Girdle moderately wide, colored in alternating bands of dark reddish brown and yellowish; covered with large, loosely imbricating, almost smooth scales.
Found from intertidal to 60 m (Ref. 75835). 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. 283)
IUCN Red List Status (Ref. 115185)
CITES status (Ref. 108899)
Threat to humans
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Estimates of some properties based on models
Low vulnerability (10 of 100)