Acteon (gastropod)

Acteon
Shell of Acteon tornatilis
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia informal group Lower Heterobranchia
Superfamily:	Acteonoidea
Family:	Acteonidae
Genus:	Acteon Montfort, 1810
Synonyms
Actaeon Ersch & Gruber, 1818 (unjustified emendation) Tornatella Lamarck, 1816

Acteon is a genus of small sea snails, predatory marine gastropod mollusks in the family Acteonidae, the barrel bubble snails.

The genus is named after Acteon, a character in Greek mythology.

In the genus Acteon, the individual teeth of the radula are very small. There are many teeth in each row.

Species

According to the World Register of Marine Species (WoRMS), the following species with accepted names are included in the genus Acteon^[1]

Species brought into synonymy

• Acteon albus Sowerby, 1874 accepted as Rictaxis albus (Sowerby III, 1874)
• Acteon amabilis Watson, 1886 accepted as Colostracon amabile (Watson, 1886)
• Acteon austrinus Watson, 1881 accepted as Leucotina casta (A. Adams, 1853)
• Acteon candidulus Monterosato, 1923 accepted as Acteon tornatilis (Linnaeus, 1758)
• Acteon dianae A. Adams, 1855 accepted as Leucotina casta (A. Adams, 1853)
• Acteon eloisae [sic] accepted as Acteon eloiseae Abbott, 1973
• Acteon flammea (Gmelin, 1791) accepted as Maxacteon flammeus (Bruguière, 1789)
• Acteon flammeus (Bruguière, 1789) accepted as Maxacteon flammeus (Bruguière, 1789)
• Acteon huttoni Cossmann, 1895 accepted as Leucotina casta (A. Adams, 1853)
• Acteon pilsbryi Cossmann, 1902 accepted as Pupa affinis (A. Adams, 1855)
• Acteon praestitus Finlay, 1924 accepted as Leucotina casta (A. Adams, 1853)
• Acteon punctostriatus (C. B. Adams, 1840) accepted as Japonactaeon punctostriatus (C. B. Adams, 1840)
• Acteon torrei Aguayo & Rehder, 1936 accepted as Bullina torrei (Aguayo & Rehder, 1936)

shell of Acteon fabreanus

The Indo-Pacific molluscan Database also includes the following species:

• Acteon aethiopicus Martens, 1902
• Acteon archibenthicola Habe, 1955
• Acteon dolichoroseus Iredale, 1936
• Acteon edentulus Watson, 1883
• Acteon fabreanus Crosse, 1873
• Acteon kirai Habe, 1949
• Acteon mariae
• Acteon lactuca
• Acteon minutus
• Acteon nakayamai Habe, 1952
• Acteon nipponensis Yamakawa, 1911
• Acteon oryza
• Acteon pudicus (A. Adams), 1854
• Acteon pulchrior Melvill, 1904
• Acteon roseus Hedley, 1906
• Acteon siebaldii (Reeve 1842)
• Acteon soyoae Habe, 1961
• Acteon teramachii Habe, 1950

The Integrated Taxonomic Information System (ITIS) also includes the following species:^[2]

• Acteon cumningi A. Adams, 1854
• Acteon liostracoides Dall, 1927
• Acteon propius Dall, 1927
• Acteon pusillus (Forbes, 1844)

• Acteon aethiopicus Martens, E.C. von, 1902
• Acteon antarcticus Thiele, 1912
  • Distribution : subantarctic
  • Length : 6.6 mm
  • Description : found at depths of 120 to 340 m
• Acteon archibenthicola Habe, 1955
  • Distribution : Indo-Pacific
• Acteon biplicatus Strebel, 1908
  • Distribution : subantarctic, Argentina, Falkland Islands, Tierra del Fuego
  • Length : 4.4 mm
  • Description : found at depths of 16 to 150 m
• Acteon candens Rehder, 1939 Rehder’s baby bubble
  • Distribution : Caribbean, Gulf of Mexico, North Carolina, Florida, Western Atlantic Ocean.
  • Length ; 10 mm
  • Description : found at depths of 10 to 20 m; glossy white shell with five whorls; body whorl contains at the base three brown spiraling bands; the top of each whorl has a narrow brown band.
• Acteon castus Hinds, 1844
  • Distribution : West America
• Acteon cratericulatus Hedley, 1906
  • Distribution : New Zealand
• Acteon danaida Dall, 1881
  • Distribution : Georgia, Caribbean, NE Brazil
  • Length : 11 mm
  • Description :.found at depths of 370 to 620 m; white translucent shell with five whorls.
• Acteon delicatus Dall, 1889
  • Distribution :Florida, Caribbean, Gulf of Mexico.
  • Length : 10 mm
  • Description : found at depths of 135 to 565 m
• Acteon dolichoroseus Iredale, 1936
  • Distribution : Indo-Pacific
• Acteon edentulus Watson, 1883
  • Distribution : Indo-Pacific
• Acteon eloiseae (= Punctacteon eloisae or perhaps a Maxacteon ?) Abbott, 1973 Eloise’s acteon
  • Distribution : Red Sea, Oman.
  • Length : 25–38 mm
  • Description: sublittoral on sandy bottoms; cream-colored shell with 5 convex whorls, each whorl with many spiral windings; each whorl is filled with redbrown separate patterns with darkbrown to black borders; similar to Maxacteon flammea.
• Acteon elongatus Castellanos, Rolán & Bartolotta, 1987
  • Distribution : Argentina
  • Length : 8.5 mm
  • Description : found at depths of 150 to 600 m
• Acteon exiguus Mörch, 1875
  • Distribution : Venezuela, Surinam.
  • Length : 6.5 mm
  • Description : found at depths of 14 to 18 m
• Acteon fabreanus (= Maxacteon fabreanus) Crosse, 1874
  • Distribution : Philippines
  • Length : 17–30 mm
  • Description : white shell with five whorls, each whorl filled with lightbrown bands covering the many spirals of each whorl.
• Acteon finlayi McGinty, 1955
  • Distribution : Florida, Caribbean
  • Length : 12 mm
  • Description : found at depths up to 360 m
• Acteon flammeus (= Maxacteon flammea) Gmelin, 1791
  • Distribution : Red Sea, tropical Indo-West Pacific
  • Length : 17 mm
  • Description : the headshield is developing secondary tentacles.
• Acteon fortis Thiele, 1925
  • Distribution : Indo-Pacific
• Acteon hancocki (= Maxacteon hancocki) Rudman, 1971
  • Distribution : New Zealand
• Acteon hebes A. E. Verrill, 1885
  • Distribution : Georgia, North Carolina.
  • Length : 8 mm
  • Description : deepsea species; found at depths of 800 to 4700 m
• Acteon incisus Dall, 1881
  • Distribution : Georgia, Mexico, Cuba
  • Length : 10 mm
  • Description : found at depths of 30 to 1170 m
• Acteon juvenis Dall, 1927
  • Distribution : Georgia
  • Length : 3 mm
  • Description : found at depths of over 500 m
• Acteon kirai Habe, 1949
  • Distribution : Philippines
  • Length : 20 mm
  • Description : shell whitish to brownish; five whorls, first whorl being the largest; each whorl has many spiral windings; outer lip is notched.
• Acteon lactuca (author unknown)
  • Distribution : Indo-Pacific.
• Acteon lacunatus Dall, 1927
  • Distribution : Georgia
  • Length : 3 mm
  • Description : found at depths of 800 m
• Acteon mariae (author unknown)
  • Distribution : Indo-Pacific
• Acteon melampoides Dall, 1881
  • Distribution : Virginia, Florida, Caribbean
  • Length : 9.6 mm
  • Description : deepsea species; found at depths of 400 to 4700 m
• Acteon milleri (= Maxacteon milleri) Rudman, 1971
  • Distribution : New Zealand
• Acteon minutus (author unknown)
  • Distribution : Indo-Pacific
• Acteon monterosatoi Dautzenberg, 1889
  • Distribution : Europe, Mediterranean, Azores
• Acteon mysouffa cumingii Adams, 1854
  • Distribution : Brazil, Florida
  • Length : 10–20 mm
  • Description : found at depths of 10 to 360 m; lightbrown shell with a large first whorl; each whorl with many spiral windings.; outer lip notched.
• Acteon nakayamai Habe, 1952
  • Distribution : Japan
• Acteon nipponensis Yamakawa, 1911
  • Distribution : Japan, Korea
  • Length : 10 mm
• Acteon oryza (author unknown)
  • Distribution : Indo-Pacific
• Acteon ovulum (Pfeiffer, 1840)
  • Distribution : Cuba
  • Length : 3.6 mm
  • Description :
• Acteon panamensis Dall, 1908
  • Distribution : Panama
• Acteon parallelus Dall, 1927
  • Distribution : Georgia
  • Length : 3 mm
  • Description : found at depths of 530 to 800 m
• Acteon particolor Dall, 1927
  • Distribution : Georgia
  • Length : 3.5 mm
  • Description : found at depths of 800 m
• Acteon pelecais Marcus, 1972
  • Distribution : Brazil
  • Length : 9.5 mm
  • Description : found at depths to 85 m
• Acteon perforatus Dall, 1881
  • Distribution : Mexico, Cuba
  • Length : 14 mm
  • Description : found at depths of 330 to 1450 m
• Acteon proprius Dall, 1927
  • Distribution : America, Georgia.
  • Length : 4.3 mm
• Acteon pudicus Adams, 1854
  • Distribution : Indo-Pacific
• Acteon pulchrior Melvill, 1904
  • Distribution : Indo-Pacific
• Acteon punctocaelatus (= Rictaxis punctocaelatus) Carpenter, 1864 Barrel shell; Carpenter's baby bubble
• Acteon retusus Verco, 1907
  • Distribution : Australia
• Acteon roseus Hedley, 1906
  • Distribution : Indo-Pacific
• Acteon semicingulatus Dall, 1927
  • Distribution : Georgia
  • Length : 3 mm
  • Description : found at depths of 500 m
• Acteon semisculptus E. A. Smith, 1890
  • Distribution : Eastern Atlantic, St. Helena
  • Length : 4 mm
• Acteon senegalensis Petit de la Saussaye
  • Distribution : West Africa
• Acteon siebaldii Reeve, 1842
  • Distribution : Japan, Coral Sea, Philippines
  • Length : 10 mm
  • Description: found on sandy bottoms; whitish shell; first whorl with lighbrown color bordered with darker brown bands.
• Acteon soyoae Habe, 1961
  • Distribution : Indo-Pacific
• Acteon splendidulus Mörch, 1875
  • Distribution : Caribbean
  • Length : 4.8 mm
• Acteon subincisus Okutani, 1968
  • Distribution : Indo-Pacific
• Acteon subroseus Iredale, 1936
  • Distribution : Indo-Pacific
• Acteon teramachii Habe, 1950
  • Distribution : Indo-Pacific
• Acteon tornatilis Linnaeus, 1767 Lathe acteon
  • Distribution : Iceland, Norway, British coasts, Norway to Congo, Mediterranean, Marmara Sea.
  • Length : 10–25 mm
  • Description : This is the major representative of the Acteonidae in European waters; It lives buried in the sand, in the intertidal zone and to a depth of up to 250 m; thick boldly colored shell with large body whorl; There are 6-7 whorls, filled with alternating wider lightbrown spiral bands and smaller pinkgray strips; white outer lip; the shell is elongate and ovate with a sharp apex. Aperture is narrow at the posterior notch but wider at the base. Columella slightly thickened and twisted.
• Acteon traskii Stearns, 1897
  • Distribution : California, Panama
  • Length : 18 mm
• Acteon vagabundus Mabille & de Rochebrune, 1885
  • Distribution : East America
• Acteon variegatus (= Punctacteon variegatus) Bruguière, 1789 Pink-spotted acteon
  • Distribution : Philippines, West Australia.
  • Length : 9–27 mm
  • Description : sublittoral on sandy bottoms; convex, cream-colored shell with five whorls, each whorls is covered with transverse pink-colored to lightbrown patterns, without dark borders; whirls with prominent shoulder.
• Acteon venustus d'Orbigny, 1840
  • Distribution : West America
• Acteon virgatus (= Punctacteon virgatus) Reeve, 1842 Striped acteon
  • Distribution : SW Pacific
  • Length : 25 mm
  • Description : cream-colored convex shell with five whorls with many spiral grooves; transversely decorated with wavy darkbrown bands,.

References

• Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). ISBN 0-915826-22-4. XII, 195 pp.
• Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180-213
• 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 [

External links

Wikimedia Commons has media related to Acteon.

• Worms info on the genus: