Acteonidae 734830 194279960 2008-02-26T22:52:03Z Eubot 231599 Removed taxobox colour. See [[User:Eubot/Removing colours from taxoboxen]]. {{Taxobox | name = Acteonidae | image = Rictaxis punctostriatus.jpg | image_width = 250px | image_caption = Adam's baby bubble, ''[[Rictaxis punctostriatus]]'' | regnum = [[Animal]]ia | phylum = [[Mollusca]] | classis = [[Gastropoda]] | subclassis = [[Orthogastropoda]] | superordo = [[Heterobranchia]] | ordo = [[Opisthobranchia]] | subordo = [[Cephalaspidea]] | superfamilia = [[Acteonoidea]] | familia = '''Acteonidae''' | familia_authority = [[Alcide d'Orbigny|d'Orbigny]], 1843 | subdivision_ranks = Genera | subdivision = See text. | type_genus = Acteon | type_genus_authority = Montfort, 1810 }} '''Acteonidae''' is a [[family (biology)|family]] of small [[marine (ocean)|marine]] sea [[snail]]s of the opisthobranch [[suborder]] [[Cephalaspidea]]. ==Shell description== The shell of these sand-dwelling [[micromollusk]]s is small but it is large enough to house the retracted soft parts including the entire [[Mantle (mollusc)|mantle]]. The narrow shell [[aperture (mollusc)|aperture]], which is ovate and pointed on the top, can be closed with an [[Operculum (gastropod)|operculum]]. The thick shell is oviform to [[fusiform]], with a short (sometimes sunken) conical [[apex (mollusc)|apex]]. They have spiral [[sculpture (mollusc)|sculpturing]]. The elongated aperture opens up from narrow at the posterior notch to enlarged at the base. The base of the columella has several characteristic [[plait (gastropod)|plait]]s. ==Anatomy== The [[radula]] has no central tooth and there are five or six laterals on each side. The teeth are very similar in shape and size across the radula, which is specialised for a diet of [[polychaete worm]]s. The eggs are enclosed in a long, gelatinous mass, which is attached to the substrate with a short stalk. Further treatment can be found under [[Acteonoidea]] and [[Cephalaspidea]]. ==Genera and species within the family Acteonidae== Genus '''''Acteon''''' <small>Montfort, 1810</small> In the genus ''Acteon'', the individual teeth of the radula are very small. There are many teeth in each row. * ''[[Acteon aethiopicus]]'' <small>Martens, E.C. von, 1902</small> * ''[[Acteon antarcticus]]'' <small>[[Johannes Thiele|Thiele]], 1912</small> ** Distribution : subantarctic ** Length : 6.6 [[millimetre|mm]] ** Description : found at depths of 120 to 340 [[metre|m]] * ''[[Acteon archibenthicola]]'' <small>Habe, 1955</small> ** Distribution : Indo-Pacific * ''[[Acteon austrinus]]'' <small>Watson, 1883</small> ** Distribution : Indo-Pacific * ''[[Acteon biplicatus]]'' <small>Strebel, 1908</small> ** Distribution : subantarctic, Argentina, Falkland Islands, Tierra del Fuego ** Length : 4.4 mm ** Description : found at depths of 16 to 150 m * ''[[Acteon candens]]'' <small>Rehder, 1939</small> '''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 (mollusc)|whorl]] has a narrow brown band. * ''[[Acteon castus]]'' <small>Hinds, 1844</small> ** Distribution : West America * ''[[Acteon danaida]]'' <small>[[W.H. Dall|Dall]], 1881</small> ** 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]]'' <small>[[W.H. Dall|Dall]], 1889</small> ** Distribution :Florida, Caribbean, Gulf of Mexico. ** Length : 10 mm ** Description : found at depths of 135 to 565 m * ''[[Acteon dolichoroseus]]'' <small>[[Tom Iredale|Iredale]], 1936</small> ** Distribution : Indo-Pacific * ''[[Acteon edentulus]]'' <small>Watson, 1883</small> ** Distribution : Indo-Pacific * ''[[Acteon eloiseae]]'' (= ''Punctacteon eloisae'' or perhaps a ''Maxacteon'' ?) <small>Abbott, 1973</small> '''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]]'' <small>Castellanos, Rolán & Bartolotta, 1987</small> ** Distribution : Argentina ** Length : 8.5 mm ** Description : found at depths of 150 to 600 m * ''[[Acteon exiguus]]'' <small>Mörch, 1875</small> ** Distribution : Venezuela, Surinam. ** Length : 6.5 mm ** Description : found at depths of 14 to 18 m * ''[[Acteon fabreanus]]'' (= ''Maxacteon fabreanus'') <small>Crosse, 1874</small> ** 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 finlay]]i'' <small>McGinty, 1955</small> ** Distribution : Florida, Caribbean ** Length : 12 mm ** Description : found at depths up to 360 m * ''[[Acteon flammeus]]'' (= ''Maxacteon flammea'') <small>[[Johann Friedrich Gmelin|Gmelin]], 1791</small> ** Distribution : Red Sea, tropical Indo-West Pacific ** Length : 17 mm ** Description : the headshield is developing secondary tentacles. * ''[[Acteon fortis]]'' <small>[[Johannes Thiele|Thiele]], 1925</small> ** Distribution : Indo-Pacific * ''[[Acteon hancocki]]'' (= ''Maxacteon hancocki'') <small>Rudman, 1971</small> ** Distribution : New Zealand * ''[[Acteon hebes]]'' <small>A. E. Verrill, 1885</small> ** Distribution : Georgia, North Carolina. ** Length : 8 mm ** Description : deepsea species; found at depths of 800 to 4700 m * ''[[Acteon incisus]]'' <small>[[W.H. Dall|Dall]], 1881</small> ** Distribution : Georgia, Mexico, Cuba ** Length : 10 mm ** Description : found at depths of 30 to 1170 m * ''[[Acteon juvenis]]'' <small>[[W.H. Dall|Dall]], 1927</small> ** Distribution : Georgia ** Length : 3 mm ** Description : found at depths of over 500 m * ''[[Acteon kirai]]'' <small>Habe, 1949</small> ** 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]]'' <small>(author unknown)</small> ** Distribution : Indo-Pacific. * ''[[Acteon lacunatus]]'' <small>[[W.H. Dall|Dall]], 1927</small> ** Distribution : Georgia ** Length : 3 mm ** Description : found at depths of 800 m * ''[[Acteon mariae]]'' <small>(author unknown)</small> ** Distribution : Indo-Pacific * ''[[Acteon melampoides]]'' <small>[[W.H. Dall|Dall]], 1881</small> ** Distribution : Virginia, Florida, Caribbean ** Length : 9.6 mm ** Description : deepsea species; found at depths of 400 to 4700 m * ''[[Acteon milleri]]'' (= ''Maxacteon milleri'') <small>Rudman, 1971</small> ** Distribution : New Zealand * ''[[Acteon minutus]]'' <small>(author unknown)</small> ** Distribution : Indo-Pacific * ''[[Acteon monterosatoi]]'' <small>[[Philippe Dautzenberg|Dautzenberg]], 1889</small> ** Distribution : Europe, Mediterranean, Azores * ''[[Acteon mysouffa cumingii]]'' <small>Adams, 1854</small> ** 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]]'' <small>Habe, 1952</small> ** Distribution : Japan * ''[[Acteon nipponensis]]'' <small>Yamakawa, 1911</small> ** Distribution : Japan, Korea ** Length : 10 mm * ''[[Acteon oryza]]'' <small>(author unknown)</small> ** Distribution : Indo-Pacific * ''[[Acteon ovulum]]'' <small>(Pfeiffer, 1840)</small> ** Distribution : Cuba ** Length : 3.6 mm ** Description : * ''[[Acteon panamensis]]'' <small>[[W.H. Dall|Dall]], 1908</small> ** Distribution : Panama * ''[[Acteon parallelus]]'' <small>[[W.H. Dall|Dall]], 1927</small> ** Distribution : Georgia ** Length : 3 mm ** Description : found at depths of 530 to 800 m * ''[[Acteon particolor]]'' <small>[[W.H. Dall|Dall]], 1927</small> ** Distribution : Georgia ** Length : 3.5 mm ** Description : found at depths of 800 m * ''[[Acteon pelecais]]'' <small>Marcus, 1972</small> ** Distribution : Brazil ** Length : 9.5 mm ** Description : found at depths to 85 m * ''[[Acteon perforatus]]'' <small>[[W.H. Dall|Dall]], 1881</small> ** Distribution : Mexico, Cuba ** Length : 14 mm ** Description : found at depths of 330 to 1450 m * ''[[Acteon proprius]]'' <small>[[W.H. Dall|Dall]], 1927</small> ** Distribution : America, Georgia. ** Length : 4.3 mm * ''[[Acteon pudicus]]'' <small>Adams, 1854</small> ** Distribution : Indo-Pacific * ''[[Acteon pulchrior]]'' <small>Melvill, 1904</small> ** Distribution : Indo-Pacific * ''[[Acteon punctocaelatus]]'' (= ''Rictaxis punctocaelatus'') <small>Carpenter, 1864</small> '''Barrel shell'''; '''Carpenter's baby bubble''' * ''[[Acteon punctostriatus]]'' (= ''Rictaxis punctostriatus'') <small>Adams, 1840</small> '''Adam’s baby bubble''' * ''[[Acteon retusus]]'' <small>Verco, 1907</small> ** Distribution : Australia * ''[[Acteon roseus]]'' <small>Hedley, 1906</small> ** Distribution : Indo-Pacific * ''[[Acteon semicingulatus]]'' <small>[[W.H. Dall|Dall]], 1927</small> ** Distribution : Georgia ** Length : 3 mm ** Description : found at depths of 500 m * ''[[Acteon semisculptus]]'' <small>E. A. Smith, 1890</small> ** Distribution : Eastern Atlantic, St. Helena ** Length : 4 mm * ''[[Acteon senegalensis]]'' <small>Petit de la Saussaye</small> ** Distribution : West Africa * ''[[Acteon siebaldii]]'' <small>Reeve, 1842</small> ** 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]]'' <small>Habe, 1961</small> ** Distribution : Indo-Pacific * ''[[Acteon splendidulus]]'' <small>Mörch, 1875</small> ** Distribution : Caribbean ** Length : 4.8 mm * ''[[Acteon subincisus]]'' <small>Okutani, 1968</small> ** Distribution : Indo-Pacific * ''[[Acteon subroseus]]'' <small>[[Tom Iredale|Iredale]], 1936</small> ** Distribution : Indo-Pacific * ''[[Acteon teramachii]]'' <small>Habe, 1950</small> ** Distribution : Indo-Pacific * ''[[Acteon tornatilis]]'' <small>[[Carolus Linnaeus|Linnaeus]], 1767</small> '''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]]'' <small>Stearns, 1897</small> ** Distribution : California, Panama ** Length : 18 mm * ''[[Acteon vagabundus]]'' <small>Mabille & de Rochebrune, 1885</small> ** Distribution : East America * ''[[Acteon variegatus]]'' (= Punctacteon variegatus) <small>[[Jean Guillaume Bruguière|Bruguière]], 1789</small> '''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-colred to lightbrown patterns, without dark borders; whirls with prominent shoulder. * ''[[Acteon venustus]]'' <small>[[Alcide d'Orbigny|d'Orbigny]], 1840</small> ** Distribution : West America * ''[[Acteon virgatus]]'' (= Punctacteon virgatus) <small>Reeve, 1842</small> '''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,. Genus '''''Callostracon''''' * ''[[Callostracon amabile]]'' <small>Watson, 1886</small> * ''[[Callostracon tyrrhenicum]]'' <small>Smriglio, C. & P. Mariottini, 1996</small> ** Distribution : Tyrrhenian Sea. Genus '''''Crenilabium''''' <small>Cossmann, 1889</small> * ''[[Crenilabium aciculatum]]'' <small>Cossman, 1889</small> * ''[[Crenilabium exilis]]'' <small>(Jeffreys, 1870)</small> ** Distribution : Florida, Mexico, Eastern Atlantic, Iceland, Mediterranean. ** Length : 8.1 mm ** Description : found at depths of 270 to 2640 m * ''[[Crenilabium pacifica]]'' <small>Kuroda & Habe, 1958</small> ** Distribution : Indo-Pacific Genus '''''Inopinodon''''' <small>Bouchet, 1975</small> * ''[[Inopinodon azonicus]]'' <small>Locard, 1897</small> Genus '''''Japonactaeon''''' <small>Taki, 1956</small> * ''[[Japonactaeon pusillus]]'' <small>Macgillivray, 1843</small> ** Distribution : Florida, Japan, Mediterranean ** Length : 11 mm ** Description : found at depths of 200 to 820 m Genus '''''Liocarenus''''' <small>Harris & Burrows, 1891</small> * ''[[Liocarenus globulinus]]'' <small>Forbes, 1844</small> ** Distribution : Atlantic, Mediterranean Genus '''''Lissacteon''''' <small>Monterosato, 1890</small> Genus '''''Maxacteon''''' * ''[[Maxacteon cratericulatus]]'' <small>Hedley, 1906</small> ** Distribution : New Zealand * ''[[Maxacteon fabreanus]]'' (= ''Acteon fabreanus'') <small>Crosse, 1874</small> ** 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. * ''[[Maxacteon flammea]]'' (= ''Acteon flammeus'') <small>[[Johann Friedrich Gmelin|Gmelin]], 1791</small> ** Distribution : Red Sea, tropical Indo-West Pacific ** Length : 17 mm ** Description : the headshield is developing secondary tentacles. * ''[[Maxacteon hancocki]]'' (= ''Acteon hancocki'') <small>Rudman, 1971</small> ** Distribution : New Zealand ** Length : 6 mm ** Description : headshield with a pair of fleshy lobes; thin [[Operculum (gastropod)|operculum]]; white shell with orange-brown markings at the base and at the apex; large body whorl; large columella, slightly twisted; shell sculptured with grooves * ''[[Maxacteon milleri]]'' (= ''Acteon milleri'') <small>Rudman, 1971</small> ** Distribution : New Zealand Genus '''''Microglyphis''''' <small>[[W.H. Dall|Dall]], 1902</small> * ''[[Microglyphis breviculus]]'' <small>[[W.H. Dall|Dall]], 1902</small> ** Distribution America * ''[[Microglyphis curtulus]]'' <small>[[W.H. Dall|Dall]]</small> ** Distribution : Patagonia * ''[[Microglyphis estuarinus]]'' <small>[[W.H. Dall|Dall]], 1908</small> ** Distribution : West America * ''[[Microglyphis]]'' globularis <small>Smith, 1875</small> ** Distribution : Japan * ''[[Microglyphis japonicus]]'' <small>T. Habe, 1952</small> ** Distribution : Indo-Pacific * ''[[Microglyphis mazatlanicus]]'' <small>[[W.H. Dall|Dall]], 1908</small> ** Distribution : West America * ''[[Microglyphis perconicus]]'' <small>[[W.H. Dall|Dall]], 1890</small> ** Distribution : West America Genus '''''Mysouffa''''' <small>Marcus, 1974</small> * ''[[Mysouffa cumingii]]'' (= ''Acteon mysouffa cumingii'') <small>(A. Adams, 1855)</small> ** Distribution : Florida, Brazil ** Length : 20 mm * ''[[Mysouffa turrita]]'' <small>(Watson, 1883)</small> ** Distribution : Jamaica, Cuba, Caribbean ** Length : 14 mm ** Description : found at depths of around 700 m Genus '''''Neactaeonina''''' <small>[[Johannes Thiele|Thiele]], 1912</small> * ''[[Neactaeonina cingulata]]'' <small>Strebel, 1908</small> ** Distribution : subantarctic ** Length : 10.5 mm ** Description : found at depths of 50 to 350 m * ''[[Neactaeonina edentula]]'' <small>Watson, 1883</small> ** Distribution : subantarctic, Indian Ocean, Kerguelen Islands. ** Length : 49.6 mm ** Description : found at depths of 170 to 800 m * ''[[Neactaeonina inexpectata]]'' <small>Dell, 1956</small> ** Distribution : New Zealand Genus '''''Obrussena''''' <small>[[Tom Iredale|Iredale]], 1930</small> * ''[[Obrussena bracteata]]'' <small>[[Tom Iredale|Iredale]], 1930</small> ** Distribution : Australia * ''[[Obrussena moeshimaensis]]'' <small>T. Habe, 1952</small> ** Distribution : Japan Genus '''''Ovulacteon''''' <small>[[W.H. Dall|Dall]], 1889</small> * ''[[Ovulacteon meekii]]'' <small>[[W.H. Dall|Dall]], 1889</small> ** Distribution : Cuba, Bahamas, East Brazil ** Length : 5.5 mm ** Description : found at depths of 360 to 820 m Genus '''''Pseudacteon''''' <small>[[Johannes Thiele|Thiele]], 1925</small> * ''[[Pseudacteon albus]]'' <small>Sowerby, 1873</small> ** Distribution : South Africa * ''[[Pseudacteon pusillus]]'' <small>Forbes, 1844</small> ** Distribution : Florida, North Atlantic, Mediterranean ** Length : 11 mm * ''[[Pseudacteon tenellus]]'' <small>Loven, 1846</small> Genus '''''Punctacteon''''' <small>Kuroda & Habe, 1961</small> * ''[[Punctacteon amakusaensis]]'' <small>T. Habe, 1949</small> ** Distribution : Indo-Pacific * ''[[Punctacteon cebuanus]]'' <small>Lan, 1985</small> ** Distribution : Philippines * ''[[Punctacteon eloisae]]'' = ''Acteon eloisae'' * ''[[Punctacteon fabraeus]]'' <small>H. Crosse</small> * ''[[Punctacteon kajiyamai]]'' <small>T. Habe, 1976</small> ** Distribution : Indo-Pacific * ''[[Punctacteon kawamurai]]'' <small>T. Habe, 1952</small> ** Distribution : Japan * ''[[Punctacteon kirai]]'' <small>T. Habe, 1949</small> ** Distribution : Indo-Pacific * ''[[Punctacteon virgatus]]'' : = ''Acteon virgatus'' Genus '''''Pupa''''' <small>Röding, 1798</small> The slugs of the genus Pupa have a large headshield with a deep median slit, separating it into two posteriorly projecting lobes. * ''[[Pupa affinis]]'' <small>Adams, 1854</small> ** Distribution : South Africa, Red Sea, Indo-Pacific ** Length : 11-20 mm ** Description : cream-colored shell with horizontal spiraled patterns (dark brown, light brown or greenish) without dark borders; sharp apex * ''[[Pupa alveola]]'' <small>Souverbie, 1863</small> ** Distribution : Indo-Pacific * ''[[Pupa choshiensis]]'' <small>T. Habe, 1958</small> ** Distribution : Japan * ''[[Pupa cinerea]]'' <small>R. B. Watson, 1886</small> ** Distribution : Japan * ''[[Pupa clathrata]]'' <small>Yokoyama, 1922</small> ** Distribution : Japan * ''[[Pupa coccinata]]'' <small>L. A. Reeve, 1842</small> (considered by some to be a color form of ''Pupa strigosa'') ** Distribution : Japan, tropical Indo-West Pacific ** Length : 25 mm ** Description : headshield flaps cover the opening of the mantle cavity; white-colored with many orange-red spots in spiraling bands * ''[[Pupa davisi]]'' <small>Kilburn, 1975</small> ** Distribution: South Africa ** Length : 12.5 mm ** Description : cream-colored shell with sharp apex. * ''[[Pupa fumata]]'' <small>Gould, 1859</small> '''Brown Pupa''' ** Distribution : tropical, Western Australia, Indo-Pacific ** Length : 20 mm ** Description : shell with spiral ribs; patterns of brown or gray spots on a cream-colored background; whorls separated by a white narrow band. * ''[[Pupa kirki]]'' <small>Hutton, 1873</small> ** Distribution : New-Zealand ** Length : 15 mm ** Description : smooth cream-colored to lightpink shell with numerous horizontal spiral bands; columella has brownish to reddish color. * ''[[Pupa niecaensis]]'' <small>K. H. Barnard, 1963</small> ** Distribution : South Africa * ''[[Pupa nitulida]]'' <small>[[Jean-Baptiste Lamarck|Lamarck]], 1818</small> '''Smooth pink pupa''' ** Distribution : Indo-Pacific, Philippines, New Caledonia, South Africa ** Length : 10-18 mm ** Description : shell has a smooth creamy to pink color; sharp apex. * ''[[Pupa nivea]]'' <small>Angas, 1871</small> ** Distribution : West Australia ** Length : 14 mm ** Description : slender, elongate shell with sharp apex; white colored with numerous fine spiral grooves. * ''[[Pupa pudica]]'' <small>Adams, 1854</small> ** Distribution : Hawaii ** Length : 7 mm ** Description : pink-colored elongate shell, with spiral bands of lightbrown patterns. * ''[[Pupa solidula]]'' <small>[[Linnaeus]], 1758</small> '''Solid pupa''' ** Distribution : cosmopolitan, Indo-Pacific ** Length : 15-35 mm ** Description: shell with a white background, covered with horizontally spiraling bands of dark brown to light brown patterns; sharp apex. * ''[[Pupa solidula]]'' fumata (= Pupa fumata) <small>Reeve, 1865</small> '''Brown pupa''' ** Distribution : Philippines, Thailand ** Length : 6 mm * ''[[Pupa strigosa]]'' <small>Gould, 1859</small> ** Distribution : Indo-West Pacific, Japan, Taiwan, South China Sea ** Length : 13 mm ** Description : intertidal to 100 m in sand; white-colored with many black spiral grooves. * ''[[Pupa strigosa sekii]]'' <small>Habe, 1958</small> ** Distribution : Japan * ''[[Pupa sulcata]]'' <small>Gmelin, 1791</small> '''Furrowed pupa''' ** Distribution : cosmopolitan, tropical Indo-Pacific, Japan ** Length : 10-25 mm ** Description : intertidal and up to depths of 30 m, burrowing in the sand; lightbrown shell with horizontal darker bands, where the darkest parts form a vertical band; sharp apex * ''[[Pupa suturalis]]'' <small>A. Adams, 1855</small> ** Distribution : Indo-Pacific * ''[[Pupa tessellata]]'' <small>L. A. Reeve, 1842</small> ** Distribution : Indo-Pacific Genus '''''Rictaxis''''' <small>[[W.H. Dall|Dall]], 1871</small> The genus name is derived from Larin words, meaning “open mouth” and “axis”, referring to the columella. * ''[[Rictaxis albus]]'' <small>Sowerby, 1873</small> ** Distribution : South Africa ** Length : 10-21 mm ** Description white shell with numerous spiraling white to lightbrown grooves * ''[[Rictaxis painei]]'' <small>[[W.H. Dall|Dall]], 1903</small> ** Distribution : America * ''[[Rictaxis punctocaelatus]]'' <small>Carpenter, 1864</small> '''Barrel shell'''; '''Carpenter's baby bubble''' ** Distribution : Southern Alaska, British Columbia, California ** Length : 10-20 mm ** Description : found in sand from lowtide line to depths up to 50 m; evenly elleptical shell with alternating darker brown and grayish-brown bands; outer lip and columellar folds are whitish; large spire; ovate columella strongly twisted, with a pointed posterior notch and a rounded base. * ''[[Rictaxis punctostriatus]]'' <small>(C. B. Adams, 1840)</small> '''Adam’s baby bubble''', '''pitted baby bubble''' ** Distribution : Western Atlantic, Florida, Gulf of Mexico, Mexico, Caribbean, Venezuela. ** Length :3- 7.5 mm ** Description : found in mud or sand at lowtide line to depths of up to 100 m; ovate white shell with shouldered whorls; body whorl has 10-14 slightly irregular spiral grooves; twisted columella; aperture ovate, rounded above and below; eggs in a spiral string, enclosed in a mucous tube. Genus '''''Tenuiacteon''''' * ''[[Tenuiacteon ambiguus]]'' <small>Hutton, 1885</small> Genus '''''Tomlinula''''' <small>Strand, 1932</small> * ''[[Tomlinula turrita]]'' <small>Watson, 1886</small> [[Category:Acteonidae| ]]