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Cryptoconchus porosus, the butterfly chiton, is a species of chiton, a marine polyplacophoran mollusc in the family Acanthochitonidae.[1][2][3]
Cryptoconchus porosus is a large chiton reaching a length of about 45–75 millimetres (1.8–3.0 in).[4][5] The eight valves 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.[6]
Cryptoconchus porosus is native to New Zealand,[2][7] and present in Madagascar.[8] 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.[6]
Cryptoconchus porosus, the butterfly chiton, is a species of chiton, a marine polyplacophoran mollusc in the family Acanthochitonidae.
The eight interlocking plates of Cryptoconchus porosus. Museum specimen
Cryptoconchus porosus is een keverslakkensoort uit de familie van de Acanthochitonidae.[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1815 door Blainville MS, Burrow.
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