Diloma bicanaliculatum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Trochidae
Genus: Diloma
Species:
D. bicanaliculatum
Binomial name
Diloma bicanaliculatum
(Dunker, 1844) [1]
Synonyms
  • Diloma (Fractarmilla) lenior Finlay, H.J., 1927
  • Trochus bicanaliculatus Dunker in Philippi, 1844 (original combination)

Diloma bicanaliculatum, common name the knobbed top shell, is a species of small sea snail, a marine gastropod mollusk, in the family Trochidae, the top snails.[2] The size of the shell varies between 10 mm and 20 mm.

Distribution

This marine shell is endemic to New Zealand and occurs off North Island, South Island and Stewart Island. A subspecies, Diloma bicanaliculata Lenoir, was once used for specimens between Cook Strait and Stewart Island.[3] The subspecies is not listed on the World Register of Marine Species, so it may no longer be valid.[2]

References

  1. ↑ Dunker in Philippi, Conchyl Cab., p. 202, t. 30, f. 6.
  2. 1 2 "Diloma bicanaliculatum". WoRMS. World Register of Marine Species. Retrieved 2018-12-20.
  3. ↑ R. C. Willan, B. A. Marshall, F. M. Climo & W. O. Cernohorsky (1980) Rectification of nomenclature for Melagraphia aethiops (Gmelin) and Diloma bicanaliculata (Dunker) (Mollusc: Trochidae) New Zealand Journal of Marine and Freshwater Research, 14:4, 413-415, DOI: 10.1080/00288330.1980.9515885
  • Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
  • Willan, R.C.; Marshall, B.A.; Climo, F.M.; Cernohorsky, W.O. 1980: Rectification of nomenclature for Melagraphia aethiops (Gmelin) and Diloma bicanaliculata (Dunker) (Mollusca: Trochidae). New Zealand Journal of Marine and Freshwater Research 14: 413-415
  • Donald K.M., Kennedy M. & Spencer H.G. (2005) The phylogeny and taxonomy of austral monodontine topshells (Mollusca: Gastropoda: Trochidae), inferred from DNA sequences. Molecular Phylogenetics and Evolution 37: 474-483
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