''Actinotrophon'' 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 nom ...
of
sea snails,
marine 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 e ...
s in the subfamily
Pagodulinae of 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 ...
Muricidae
Muricidae is a large and varied taxonomic family of small to large predatory sea snails, marine gastropod mollusks, commonly known as murex snails or rock snails. With about 1,600 living species, the Muricidae represent almost 10% of the Neoga ...
, the murex snails or rock snails.
[MolluscaBase eds. (2020). MolluscaBase. Actinotrophon Dall, 1902. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=564700 on 2020-05-06]
Description
A group which perhaps deserves distinction is ''Actinotrophon'', based on ''Boreotrophon actinophorus''
Dall, 1889 in which with the structure of the thin ''Borvotrophon'' with long coronating spines is united as a feature, not elsewhere noted in the genus, of successive canals, so curved that the projecting old ones, recurving from the siphonal fasciole form a whorl of hollow split spines, diverging from a deep umbilical pit, as in some murices. In ''
Murex
''Murex'' is a genus of medium to large sized predatory tropical sea snails. These are carnivorous marine gastropod molluscs in the family Muricidae, commonly called "murexes" or "rock snails".Houart, R.; Gofas, S. (2010). Murex Linnaeus, 175 ...
'', however, the
siphonal canal is closed and the
aperture
In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane.
An ...
has a projecting callous margin.
Dall, W. H. (1902). Illustrations and descriptions of new, unfigured, or imperfectly known shells, chiefly American in the U. S. National Museum. Proceedings of the United States National Museum. 24 (1264): 499-566, pls 27-40
Species
Species within the genus ''Actinotrophon'' include:
* ''Actinotrophon actinophorus
''Actinotrophon actinophorus'' is a species of sea snail, a marine gastropod mollusc in the family Muricidae
Muricidae is a large and varied taxonomic family of small to large predatory sea snails, marine gastropod mollusks, commonly k ...
'' (Dall, 1889)
* ''Actinotrophon fragilis
''Actinotrophon fragilis'' is a species of sea snail, a marine gastropod mollusk in the family Muricidae
Muricidae is a large and varied taxonomic family of small to large predatory sea snails, marine gastropod mollusks, commonly known ...
'' (Houart, 1996)
* ''Actinotrophon tenuis
''Actinotrophon tenuis'' is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.MolluscaBase eds. (2020). MolluscaBase. Actinotrophon tenuis (Houart, 2001). Accessed through: World Regist ...
'' (Houart, 2001)
;Species brought into synonymy:
* ''Actinotrophon planispina'' (E. A. Smith, 1892): synonym of '' Enixotrophon planispinus'' (E. A. Smith, 1906)
References
External links
Barco, A.; Marshall, B.; Houart, R.; Oliverio, M. (2015). Molecular phylogenetics of Haustrinae and Pagodulinae (Neogastropoda: Muricidae) with a focus on New Zealand species. Journal of Molluscan Studies. 81(4): 476-488
{{Muricidae-stub