Gastropoda | Archaeogastropoda
Environment: milieu / climate zone / depth range / distribution range
Benthic; depth range 0 - 30 m (Ref. 95344). Temperate
Eastern Pacific and the Arctic: from Alaska to Mexico. Subtropical to polar.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 2.5 cm SHD male/unsexed; (Ref. 95344); common length : 3.0 cm TL male/unsexed; (Ref. 312)
Description: Shell has 3 whorls; chocolate brown with iridescent gold spiral ridges; the inner edge of the empty shell is iridescent blue. The foot regularly discharges a mucous layer on the shell which apparently makes the animal more difficult for predators to grasp (Ref. 312).
It has a shell size of 3 cm (Ref. 312). Occurs in low intertidal to subtidal levels (Ref. 312). Commonly found in rocky areas and kelp beds (Ref. 95344). Omnivorous, feeding on hydroids, detritus and diatoms (Ref. 312). Members of the order Archaeogastropoda are mostly gonochoric and broadcast spawners. Life cycle: Embryos develop into planktonic trocophore larvae and later into juvenile veligers before becoming fully grown adults (Ref. 833).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the order Archaeogastropoda are mostly gonochoric and broadcast spawners. Life cycle: Embryos develop into planktonic trocophore larvae and later into juvenile veligers before becoming fully grown adults.
Gallivan, G. and J. Danforth. 1999. (Ref. 312)
IUCN Red List Status (Ref. 120744)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
): 5.8 - 15.9, mean 8.9 (based on 406 cells).