''Theta'' is a
genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
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 ...
s,
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 ...
mollusk
Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...
s 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 ...
Raphitomidae
Raphitomidae is a Family (biology), family of small to medium-sized sea snails, marine (ocean), marine gastropod mollusks in the superfamily Conoidea.Bouchet P. & Rocroi J.-P. (Ed.) (2005). "Classification and nomenclator of gastropod families" ...
.
Species
Species within the genus ''Theta'' include:
* ''
Theta baiocchii''
Nappo & Pellegrini, 2021
* ''
Theta chariessa''
(Watson, 1881)
* ''
Theta lyronuclea''
(Clarke A.H., 1959)
* ''
Theta microcostellata''
Criscione, Hallan, Puillandre & Fedosov, 2021
* ''
Theta polita''
Criscione, Hallan, Puillandre & Fedosov, 2021
* ''
Theta spicea''
(Watson, 1881)
* ''
Theta vayssierei''
(Dautzenberg, 1925)
;Species brought into synonymy:
* ''Theta chrysoplex''
(Barnard, 1963): synonym of ''
Gymnobela chrysopelex''
(Barnard, 1963)
* ''Theta lanceata''
(Dall, 1927): synonym of ''
Gymnobela lanceata''
Dall, 1927
;Synonyms:
* ''Theta lanceata''
(Dall, 1927) : synonym of ''
Gymnobela lanceata''
Dall, 1927
References
* Clarke, A. H. (1959). New abyssal molluscs from off Bermuda collected by the Lamont Geological Observatory. Proceedings of the Malacological Society of London. 33(5): 231–238, pl. 13
* Bouchet, P. & Warén, A. (1980). Revision of the North-East Atlantic bathyal and abyssal Turridae (Mollusca: Gastropoda). Journal of Molluscan Studies. Suppl. 8: 1-119
* Spencer, H.; Marshall. B. (2009). ''All Mollusca except Opisthobranchia. In: Gordon, D. (Ed.) (2009). New Zealand Inventory of Biodiversity. Volume One: Kingdom Animalia.'' 584 pp
* Vaught, K.C. (1989). ''A classification of the living Mollusca''. American Malacologists: Melbourne, FL (USA). . XII, 195 pp
* Bouchet P., Kantor Yu.I., Sysoev A. & Puillandre N. (2011) A new operational classification of the Conoidea. Journal of Molluscan Studies 77: 273–308.
External links
*
Worldwide Mollusc Species Data Base: RaphitomidaeCriscione, F.; Hallan, A.; Fedosov, A.; Puillandre, N. (2021). Deep Downunder: Integrative taxonomy of Austrobela, Spergo, Theta and Austrotheta (Gastropoda: Conoidea: Raphitomidae) from the deep sea of Australia. Journal of Zoological Systematics and Evolutionary Research. DOI 10.1111/jzs.12512.
Raphitomidae
{{Raphitomidae-stub