Teinostoma


Teinostoma is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Teinostomatidae.
This genus used to be placed within the family Skeneidae or family Tornidae

Shell description

The shells of species in this genus are usually white and glossy, are transparent when fresh, and are only a few millimeters in maximum size.
The shell is orbicular, depressed, subspiral and polished. The body whorl is rounded at the periphery. The umbilical region is covered with a large, flat callosity. The aperture is transverse, rounded, greatly produced and elongated, ending anteriorly in a slightly canaliculated point. The inner lip is smooth, callous, not emarginate or truncate anteriorly. The outer lip is thin, simple, not margined or reflected.

Type species

There were two species cited along with the description of Teinostoma by H. & A. Adams but one of them, Teinostoma anomalum C. B. Adams, was nomen nudum, therefore leaving Teinostoma politum A. Adams, made available therein by a figure, as type species by monotypy. ICZN art. 67.2.1. defines "originally included nominal species" to comprise only species that have been cited in the original publication by an available name. The intended description of Teinostoma as "new genus" by A. Adams appeared only later and there T. politum is the sole included species.

Species

This genus includes the following species:Teinostoma abditum Rolán, Rubio & Ryall, 2000Teinostoma abnorme E. A. Smith, 1890Teinostoma africanum Teinostoma aloysii Selli, 1974Teinostoma altum Pilsbry, 1953Teinostoma americanum Pilsbry & Olsson, 1945Teinostoma amplectans Carpenter, 1857Teinostoma anastomosis Rubio, Rolán & Lee, 2011Teinostoma atomaria Teinostoma avunculus Pilsbry, 1953Teinostoma azoricum Teinostoma baldingeri Rubio, Fernández-Garcés & Rolán, 2011Teinostoma bibbianum Dall, 1919Teinostoma biscaynense Pilsbry & McGinty, 1945Teinostoma brankovitsi Rubio, Rolán, Worsaae, Martínez & Gonzalez, 2016Teinostoma callosum Thiele, 1925Teinostoma cansadoi Adam & Knudsen, 1969Teinostoma carbonnieri Jousseaume, 1881Teinostoma carinicallus Pilsbry & McGinty, 1946Teinostoma cecinella Dall, 1919Teinostoma cienfuegosense Rubio, Fernández-Garcés & Rolán, 2011Teinostoma circularis Talavera, 1975Teinostoma ciskae Faber, 1995Teinostoma cocolitoris Pilsbry & McGinty, 1945
  • † Teinostoma complanatum Deshayes, 1864 Teinostoma concavaxis Pilsbry & Olsson, 1945Teinostoma concentricum A. Adams, 1863Teinostoma deschampsi Jousseaume, 1881Teinostoma diotrephes Teinostoma ecuadorianum Pilsbry & Olsson, 1941
  • † Teinostoma elegans Deshayes, 1864 Teinostoma esmeralda Pilsbry & Olsson, 1945Teinostoma expansum Rubio, Fernández-Garcés & Rolán, 2011Teinostoma fernandesi Rubio & Rolán, 1991Teinostoma funiculatum Rubio & Rolán, 1991
  • † Teinostoma gallegosi Jordan, 1936Teinostoma goniogyrus Pilsbry & McGinty, 1945Teinostoma helicinum Rubio, Fernández-Garcés & Rolán, 2011Teinostoma hemphilli Strong & Hertlein, 1939Teinostoma herbertianum Hertlein & Strong, 1951
  • † Teinostoma hosdenacense Cossmann, 1888 Teinostoma hyalinum Thiele, 1925Teinostoma imperfectum Pilsbry & Olsson, 1945Teinostoma incertum Pilsbry & McGinty, 1945Teinostoma inconspicuum Thiele, 1925Teinostoma invallatum Teinostoma involutum Hedley, 1902Teinostoma jucundum Teinostoma lampetes Pilsbry & Olsson, 1952Teinostoma lenticulare Teinostoma lerema Pilsbry & McGinty, 1945Teinostoma lirulatum Teinostoma lituspalmarum Pilsbry & McGinty, 1945Teinostoma lucidum A. Adams, 1863Teinostoma lunense Rubio, Fernández-Garcés & Rolán, 2011
  • † Teinostoma margaritula Deshayes, 1864 Teinostoma megacallum Rubio, Fernández-Garcés & Rolán, 2011Teinostoma megastoma Teinostoma millepunctatum Pilsbry & Olsson, 1945Teinostoma minusculum
  • † Teinostoma minutum
  • † Teinostoma mite Deshayes, 1864 Teinostoma morlierei Jousseaume, 1872Teinostoma multisulcatum Dautzenberg & H. Fischer, 1907Teinostoma myrae Pilsbry & Olsson, 1952
  • † Teinostoma nanum Teinostoma narina Pilsbry & Olsson, 1945Teinostoma nesaeum Pilsbry & McGinty, 1945
  • † Teinostoma obesum Landau, Ceulemans & Van Dingenen, 2018 Teinostoma obtectum Pilsbry & McGinty, 1945Teinostoma ochsneri Strong & Hertlein, 1939Teinostoma oppletum Hedley, 1898Teinostoma pallidulum Teinostoma panamense Rubio, Rolán & Lee, 2011Teinostoma parvicallum Pilsbry & McGinty, 1945Teinostoma percarinatum Pilsbry & Olsson, 1945Teinostoma perspicuum Teinostoma politum A. Adams, 1853
  • † Teinostoma priscum Deshayes, 1863 Teinostoma radiatum A. Adams, 1863Teinostoma rarum Pilsbry & Olsson, 1945Teinostoma reclusum Dall, 1889Teinostoma rhinoceros Jousseaume, 1881
  • † Teinostoma rotellaeforme Deshayes, 1864 Teinostoma sapiella Dall, 1919Teinostoma semistriatum Teinostoma shepstonense Tomlin, 1926Teinostoma sibogae Schepman, 1908Teinostoma solidum E. A. Smith, 1872Teinostoma solidum Teinostoma soror Pilsbry & Olsson, 1945
  • † Teinostoma striatissimum Deshayes, 1864 Teinostoma substriatum Carpenter, 1857Teinostoma sulcatum Teinostoma supravallatum Teinostoma tectispira Pilsbry, 1953
  • † Teinostoma trigonostoma Deshayes, 1864 Teinostoma tumens Teinostoma ultimum Pilsbry & Olsson, 1945Teinostoma umbilicatum Teinostoma vayssierei Couturier, 1907Teinostoma zacae Hertlein & Strong, 1951
;Taxa inquirenda:Teinostoma carpenteri A. Adams, 1861 Teinostoma hidalgoana Pilsbry, 1895
  • ''Teinostoma parvum''

Synonyms

Teinostoma alfredensis Bartsch, 1915: synonym of Teinostoma africanum Teinostoma azoricum : synonym of Seamountiella azorica Teinostoma bartschi Vanatta, 1913: synonym of Solariorbis infracarinatus
  • † Teinostoma calliglyptum Dall, 1903: synonym of † Anticlimax calliglypta Teinostoma clavium Pilsbry & McGinty, 1945: synonym of Teinostoma semistriatum Teinostoma cryptospira : synonym of Teinostoma umbilicatum Teinostoma dalli Dautzenberg, 1912 : synonym of Leucorhynchia punctata Teinostoma emmeles Melvill, 1910: synonym of Eunaticina emmeles Teinostoma floridense : synonym of Cirsonella floridensis Teinostoma funiculus Dall, 1892: synonym of Vitrinella funiculus Teinostoma hondurasensis Vanatta, 1913: synonym of Solariorbis hondurasensis Teinostoma involuta Hedley, 1902: synonym of Teinostoma involutum Hedley, 1902
  • Teinostoma millepunctatum Nowell-Usticke, 1969: synonym of Teinostoma ciskae Faber, 1995Teinostoma modesta Dall, 1889: synonym of Dillwynella modesta
  • † Teinostoma opsitelotus Dall, 1892: synonym of † Vitrinella opsitelotus Teinostoma orbitum Hedley, 1900: synonym of Caperella orbita Teinostoma pilsbryi McGinty, 1945: synonym of Anticlimax pilsbryi Teinostoma proboscidea Aguayo, 1949: synonym of Anticlimax proboscidea Teinostoma punctatum Jousseaume, 1872: synonym of Leucorhynchia punctata Teinostoma qualum Hedley, 1899: synonym of Munditiella qualum Teinostoma rotatum Hedley, 1899: synonym of Leucorhynchia rotata Teinostoma salvania Dall, 1919: synonym of Vitrinella eshnaurae Bartsch, 1907
  • Teinostoma sulcata : synonym of Pygmaeorota sulcata Teinostoma schumoi Vanatta, 1913: synonym ofs Solariorbis schumoi Teinostoma solida E. A. Smith, 1872: synonym of Teinostoma solidum E. A. Smith, 1872 Teinostoma starkeyae Hedley, 1899: synonym of Starkeyna starkeyae Teinostoma sulcata : synonym of Pygmaeorota sulcata : synonym of Circulus sulcatus Teinostoma suppressa Dall, 1889: synonym of Cyclostremiscus suppressus
  • Teinostoma vesta Hedley, 1901: synonym of ''Vitrinella vesta''