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''Cryptoconchus porosus'', the butterfly chiton, is a
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Sealifebase
/ref> These common grazers prefer outer exposed rocks washed by waves, in the low intertidal and shallow subtidal zone, or in deeper water down to 30m, often in association with sponges.
The Breeding Habits of Cryptoconchus porosus (Burrow)
Acanthochitonidae Chitons described in 1815 {{Chiton-stub
species
In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...
of chiton
Chitons () are marine molluscs of varying size in the class Polyplacophora (), formerly known as Amphineura. About 940 extant and 430 fossil species are recognized.
They are also sometimes known as gumboots or sea cradles or coat-of-mail sh ...
, a marine
Marine is an adjective meaning of or pertaining to the sea or ocean.
Marine or marines may refer to:
Ocean
* Maritime (disambiguation)
* Marine art
* Marine biology
* Marine debris
* Marine habitats
* Marine life
* Marine pollution
Military
* ...
polyplacophoran mollusc in the family Acanthochitonidae.WoRMS/ref>
Description
''Cryptoconchus porosus'' is a large chiton reaching a length of about . The eightvalves
A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fitting ...
are almost completely covered by a raised girdle, young specimens may have only seven. These are pale blue or white on top, sometimes sky blue underneath, and when removed from the animal they each resemble a butterfly giving the common name. The girdle is fleshy and smooth with short sutural bristles that protrude from 18 rounded pores, which are elevated and run in two crested rows from head to tail. The colour of the dorsal surface can range from dark brown to bright orange, while the underside of the girdle is pale orange with a bright orange foot.Marine Life/ref>
Distribution and habitat
''Cryptoconchus porosus'' is native to New Zealand, and present in Madagascar./ref> These common grazers prefer outer exposed rocks washed by waves, in the low intertidal and shallow subtidal zone, or in deeper water down to 30m, often in association with sponges.
References
* Powell A W B, ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979 *URMO: UNESCO-IOC Register of Marine Organisms. Land J. van der (ed) * ВI Bbewin - 193The Breeding Habits of Cryptoconchus porosus (Burrow)
Acanthochitonidae Chitons described in 1815 {{Chiton-stub