Gastropoda | Archaeogastropoda
Environment: milieu / climate zone / depth range / distribution range
Eastern Pacific: USA.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cmCommon length : 3.5 cm SHL male/unsexed; (Ref. 312)
Shell is broad, thick and smooth with a round conical shape. The shell is brown to orange-brown with an orange foot (Ref. 312).
It has a shell length 3.5 cm (Ref. 312). Habitat: Occurs in the middle low intertidal and shallow subtidal zones on rocky shores; also upper blades and stipes of off-shore kelp. Diet: multiple species of algae, both micro and macroscopic. Predator: sea stars and sea otters (Ref. 312).
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. 124695)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
): 8.8 - 19, mean 13.1 (based on 106 cells).