''Actinotrophon'' 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
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 current power
* Marine debris
* Marine energy
* Marine habitats
* Mari ...
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 subfamily
Pagodulinae
Pagodulinae is a taxonomic subfamily of predatory sea snails, marine gastropod mollusks in the family Muricidae, the murex shells or rock shells.Bouchet, P. (2014). Pagodulinae Barco, Schiaparelli, Houart & Oliverio, 2012. Accessed through: Wor ...
of 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 ...
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 over 1,700 living species, the Muricidae represent almost 10% of the Neog ...
, 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, 1 ...
'', however, the
siphonal canal
The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water i ...
is closed and the
aperture
In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the system. More specifically, the entrance pupil as the front side image o ...
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'' (Dall, 1889)
* ''Actinotrophon fragilis
''Actinotrophon fragilis'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Muricidae, the murex snails or rock snails.MolluscaBase eds. (2020). MolluscaBase. Actinotrophon fragilis (Houart, 1996). Accessed t ...
'' (Houart, 1996)
* '' Actinotrophon tenuis'' (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