''Trigonostoma semidisjunctum'' is a
species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...
of
sea snail
Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...
, a marine
gastropod
Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, freshwater, and fro ...
mollusc
Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum ...
in the
family
Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Cancellariidae
Cancellariidae, common name the nutmeg snails or nutmeg shells, are a family (biology), family of small to medium-large sea snails, marine (ocean), marine gastropod mollusks in the clade Neogastropoda. Some of the shells of the species in this ...
, the nutmeg snails.
Description
Distribution
References
* Kilburn, R.N. & Rippey, E. (1982) ''Sea Shells of Southern Africa''. Macmillan South Africa, Johannesburg, xi + 249 pp. page(s): 115
* Hemmen J. (2007). ''Recent Cancellariidae''. Wiesbaden, 428pp
* Petit, R.E. & Harasewych, M.G. (2005) ''Catalogue of the superfamily Cancellarioidea Forbes and Hanley, 1851 (Gastropoda: Prosobranchia)-'' 2nd edition. Zootaxa, 1102, 3–161. NIZT 682
* Petit R.E. (2009) ''George Brettingham Sowerby, I, II & III: their conchological publications and molluscan taxa''. Zootaxa 2189: 1–218
Cancellariidae
Gastropods described in 1849
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