''Asthenotoma'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
sea snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
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 debris
* Marine habitats
* Marine life
* Marine pollution
Military
* ...
gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
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
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Borsoniidae
Borsoniidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet, P. (2011). Borsoniidae. Accessed through: World Register of Marine Species at http://www.marinespecies.o ...
.
[Bouchet, P. (1970). Asthenotoma. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=224458 on 2016-02-08]
Description
This genus, almost entirely represented by extinct species, is of slender form and elevated, evenly and gradually acuminate spire, conspicuous development of the spiral lyrae and short aperture. It should evidently be considered especially with ''
Trypanotoma'' and allies, but it is somewhat of an annectant form, as the American species at least have true ribbing on the nepionic whorls which becomes completely lost on the larger volutions of the shell. It is therefore one of those puzzling exceptions which render an arrangement of the genera in a dichotomous table so difficult and unsatisfactory. The embryo in the type, ''Pleurotoma basteroti'' Desm., of the European
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen ...
, is said by Cossmann to be paucispiral, but the drawing shows a multispiral protoconch. This is, however, a matter of minor importance. The
anal sinus is broad, sometimes very feeble and always median in position on the spire whorls though not identified with any particular one or more of the subequal and rather coarse flat spirals. The beak has no external oblique tumidity. There can be but little doubt, in view of geographical variations and wide distribution of this genus, that ''Endiatoma'', of Cossmann, should be regarded as a synonym or as constituting a slightly differentiated section of ''Asthenotoma''.
Species
Species within the genus ''Asthenotoma'' include:
* † ''
Asthenotoma angusta''
Lozouet, 2017
* † ''
Asthenotoma bipunctula''
(S. V. Wood, 1848)
* † ''
Asthenotoma colus''
(Dujardin, 1837)
* † ''
Asthenotoma conulus'' (
Grateloup, 1845)
* † ''
Asthenotoma crenulata''
Gougerot, 1966 [ Gougerot, L., 1966. - Présentation de cinq espèces nouvelles et de nouveaux représentants de gastéropodes dans le Lutétien et le Bartonien du Bassin de Paris. Bulletin de la Société Géologique de France 7("1965"): 296-301, sér. 7 série ]
* † ''
Asthenotoma falunica''
Peyrot, 1938
* † ''
Asthenotoma festiva''
(Hörnes, 1854)
* † ''
Asthenotoma juvenilis''
Lozouet, 2015
* † ''
Asthenotoma lamothei''
(Dautzenberg, 1910)
* † ''
Asthenotoma lanceolata''
Ceulemans, Van Dingenen & Landau, 2018
* † ''
Asthenotoma ligata''
(Defrance, 1826)
* † ''
Asthenotoma meneghinii''
(Mayer, 1868)
* † ''
Asthenotoma newtoni''
de Boury, 1899
* † ''
Asthenotoma ornata''
(Defrance, 1826)
* † ''
Asthenotoma pannus''
(Basterot, 1825)
* † ''
Asthenotoma praepannus''
Lozouet, 2017
* † ''
Asthenotoma pupa''
(Edwards, 1861)
* ''
Asthenotoma texta''
(Thiele, 1925) (original combination: ''Turris (Hemipleurotoma) texta'')
* † ''
Asthenotoma tuberculata''
(Pusch, 1837)
* † ''
Asthenotoma vulcani''
Lozouet, 2017
;Taxon inquirendum:
* ''Oligotoma sirpata''
Jousseaume, 1891
;Synonyms:
* Subgenus ''Asthenotoma (Drilliola)''
Locard, 1897: synonym of ''
Drilliola
''Drilliola'' is a genus of sea snails, marine gastropod mollusks 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 p ...
''
Locard, 1897
* ''Asthenotoma (Drilliola) emendata''
(Monterosato, 1872): synonym of ''
Drilliola emendata
''Drilliola emendata'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.
Description
The brown shell grows to a length of 9 mm. The whorls show three cingulae and two lirae. The body whorl is spirally mu ...
''
(Monterosato, 1872)
* ''Asthenotoma cicatrigula''
Hedley, 1922: synonym of ''
Tomopleura cicatrigula''
(Hedley, 1922)
* ''Asthenotoma eva''
(Thiele, 1925): synonym of ''
Maoritomella eva''
(Thiele, 1925)
* †''Asthenotoma exbasteroti''
Peyrot, 1931: synonym of † ''
Drilliola basteroti
''Drilliola'' is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae, the cone snails and their allies.
Species
Species within the genus ''Drilliola'' include:
* '' Drilliola annosa''
* '' Drilliola antarctica''
* '' ...
''
(Des Moulins, 1842)
* ''Asthenotoma komakimonos''
Otuka, 1935: synonym of ''
Pulsarella komakimonos''
(Otuka, 1935)
* † ''Asthenotoma obesa''
Peyrot, 1931: synonym of † ''
Drilliola obesa
''Drilliola'' is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae, the cone snails and their allies.
Species
Species within the genus ''Drilliola'' include:
* '' Drilliola annosa''
* '' Drilliola antarctica''
* ...
''
(Peyrot, 1931)(original combination)
* ''Asthenotoma spiralis''
(E. A. Smith, 1872): synonym of ''
Tomopleura spiralissima''
Gofas & Rolán, 2009
* ''Asthenotoma subtilinea''
Hedley, 1918: synonym of ''
Tomopleura subtilinea''
(Hedley, 1918)
* † ''Asthenotoma tricarinata''
Peyrot, 1931: synonym of † ''
Boettgeriola tricarinata''
(Peyrot, 1931) (original combination)
* ''Asthenotoma vertebrata''
(E. A. Smith, 1875): synonym of ''
Tomopleura vertebrata''
(E. A. Smith, 1875)
References
External links
Harris G. F. & Burrows H. W. (1891). The Eocene and Oligocene beds of the Paris basin. Geologists' Association, London 129 pp.: page(s): 113Bellardi L. (1875). ''Novae pleurotomidarum Pedimonti et Liguriae fossilium: dispositionis prodromus.'' Bullettino della Società Malacologica Italiana. 1: 16-24 Bouchet, P.; Kantor, Y. I.; Sysoev, A.; Puillandre, N. (2011). ''A new operational classification of the Conoidea.'' Journal of Molluscan Studies. 77, 273-308MNHN, Paris: ''Asthenotoma crenulata''
{{Taxonbar, from=Q9635395