Polyplacophora | Chitonida
Environment: milieu / climate zone / depth range / distribution range
Benthic; depth range 0 - 20 m (Ref. 290). Subtropical
Eastern Pacific: Canada, USA and Mexico.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 4.4 cm TL male/unsexed; (Ref. 296)
Medium width girdle, with overlapping scales which are flat; larger at the valves and smaller at the margin of the girdle; deeply ridged with fine netlike sculpturing in between these ridges. Lateral areas: 5-8 rows of prominent beading. End valves: Radially beaded in ridges. Color of the valves: Olivaceous or gray; some have dark triangular blotches on the jugum. Girdle: Dark and light gray blotched (Ref. 296).
Depth based on occurrence record; to be replaced with better reference. 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
): 10.4 - 18.2, mean 12.7 (based on 120 cells).
Low vulnerability (10 of 100)