- Calliostoma annulatum
Taxobox
name = "Calliostoma annulatum"
image_width = 250px
image_caption =
regnum =Animal ia
phylum = Mollusca
classis =Gastropod a
ordo =Archaeogastropoda
familia =Calliostomatidae
genus = "Calliostoma "
species = "C. annulatum"
binomial = "Calliostoma annulatum"
binomial_authority = (Lightfoot, 1786)"Calliostoma annulatum", commonly known as the purple-ring topsnail, blue-ring topsnail, jewelled topsnail or similar names, is a medium-sized sea
snail , a sublittoral marinegastropod mollusk of thePacific coast ofNorth America .Range of distribution
This top shell can be found from Isla San Geronimo,
Baja California , north to Forrester Island,Alaska .hell description
This species is distinguished by its brilliantly colored shell, which is lustrous with a gold field and a purple stripe. The brilliance of the colors fades somewhat once the animal dies.
The shell height is up to approximately 30 mm.
Life habits
This species is fairly omnivorous, feeding seasonally on
kelp , sessile fauna such asbryozoan s, and detritus.References
* Integrated Taxonomic Information System. [http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=69796 Calliostoma annulatum]
* Race Rocks Taxonomy. [http://www.racerocks.com/racerock/eco/taxalab/ensy02/belens.htm Calliostoma annulatum]
* Key to Invertebrates Found At or Near Walla Walla College Marine Station. [http://www.rosario.wwc.edu/inverts/Mollusca/Gastropoda/Prosobranchia/Order_Archaegastropoda/Suborder_Trochina/Trochidae/Calliostoma_annulatum.html Calliostoma annulatum]
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