Calliostoma annulatum (Lightfoot, 1786)
Purple-ringed topsnail
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Family:  Calliostomatidae ()
Max. size:  3 cm SHD (male/unsexed)
Environment:  benthic; marine; depth range 0 - 42 m
Distribution:  Eastern Pacific and the Arctic: From Alaska to Mexico. Tropical to boreal.
Diagnosis:  Description: Shell is conical and colored shiny gold with iridescent purple rings (Ref. 312).
Biology:  It has a shell height of 3.5 cm (Ref. 312). Occurs at low intertidal to subtidal levels. Omnivorous, feeds on kelp, detritus, diatoms, copepods, hydroids, and bryozoans. During good weather, they like to move up the stalks of the kelp towards the sun (Ref. 312). Also in Ref. 95344.
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:   
 

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