Diloma aridum is a species of small sea snail, a marine gastropod mollusc in the family Trochidae.Bouchet, P. (2013). Diloma aridum(Finlay, 1926). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=546854 on 2014-03-18 This species is a part of the broader genus Diloma that engrosses other marine gastropods like Diloma aethiops and Diloma bicanaliculatum.
Diloma aridum is primarily found on sheltered mid-tidal rocks in the Chatham Islands and Auckland Islands and is habitual to specific regions in New Zealand.
Description
The height of the shell attains 19 mm, its diameter is 17 mm. It is a purplish-black marine snail with pale yellow flecks in appearance. Distribution This marine species is endemic to Chatham Islands, New Zealand and Auckland Islands and occurs on sheltered mid-tidal rocks.
References
Powell A W B, New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 Spencer, H.G.; Marshall, B.A.; Maxwell, P.A.; Grant-Mackie, J.A.; Stilwell, J.D.; Willan, R.C.; Campbell, H.J.; Crampton, J.S.; Henderson, R.A.; Bradshaw, M.A.; Waterhouse, J.B.; Pojeta, J. Jr (2009). Phylum Mollusca: chitons, clams, tusk shells, snails, squids, and kin, in: Gordon, D.P. (Ed.) (2009). New Zealand inventory of biodiversity: 1. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. pp. 161–254
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