''Theta'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
of
sea snails,
marine
Marine is an adjective meaning of or pertaining to the sea or ocean.
Marine or marines may refer to:
Ocean
* Maritime (disambiguation)
* Marine art
* Marine biology
* Marine debris
* Marine habitats
* Marine life
* Marine pollution
Military
* ...
gastropod mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is es ...
s in the
family
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
Raphitomidae
Raphitomidae is a family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet P. & Rocroi J.-P. (Ed.) (2005). "Classification and nomenclator of gastropod families". '' Malacologia'' 47(1-2). . 3 ...
.
Species
Species within the genus ''Theta'' include:
* ''
Theta baiocchii''
Nappo & Pellegrini, 2021
* ''
Theta chariessa
''Theta chariessa'' is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
In 1980 Bouchet & Warén brought this species into the genus ''Theta''.
;Subspecies:
* ''Theta chariessa aresta'' (Dall, 1889)
* ''Theta c ...
''
(Watson, 1881)
* ''
Theta lyronuclea
''Theta lyronuclea'' is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
Description
The length of the shell attains 9.3 mm.
Distribution
This marine species occurs in the Atlantic Ocean off Madeira
) ...
''
(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