小舌形貝屬（學名：_Lingulella_）是圓貨貝科下已滅絕的一個屬，生存在寒武紀至泥盆紀的海洋中，屬於較早期的腕足動物，行沙底掘穴或附生於伊爾東缽（_Eldonia_）等浮游生物的方式生活。本屬化石廣見於世界各地寒武紀至中奧陶世的地層中，如加拿大中寒武世伯吉斯頁岩和美國上奧陶統布羅米德群等。



特徵

這種腕足動物的體型較小，殼瓣雙凸狀，凸起平緩，呈長卵形、闊卵形或近三角形，殼體薄，由磷酸鹽類組成，前緣一般呈寬圓狀，朝殼喙方向逐漸縮小，殼喙位於假鉸合面邊緣。兩瓣殼近相等，腹殼稍長且假鉸合面高，在假鉸合面頂端長有肉莖管。腹殼內可見盾狀肌肉瘢痕區，頂肌痕呈心形，中央肌痕則呈小的三角形，後側肌痕不明。背殼內有時可見一條狹窄的中脊。殼表面有同心狀飾紋，內層殼有放散狀花紋。



物種


* _Lingulella agaue_ Mergl & Kordule, 2008

* _Lingulella alabamensis_

* _Lingulella alata_ Holmer, 1989

* _Lingulella alia_

* _Lingulella allani_ Walcott, 1912

* _Lingulella amabilis_ Reed, 1917

* _Lingulella angustata_

* _Lingulella angustior_ Reed, 1917

* _Lingulella antiquissima_ Jeremejew, 1856

* _Lingulella arachne_ Barrande, 1879

* _Lingulella arctica_ Walcott, 1924

* _Lingulella arguta_

* _Lingulella augusta_

* _Lingulella afga_

* _Lingulella bella_

* _Lingulella bellisculpta_ Clark, 1935

* _Lingulella bohemica_ Koliha, 1921

* _Lingulella borealis_

* _Lingulella brainerdi_

* _Lingulella brevis_ Portlock, 1843

* _Lingulella bridgei_

* _Lingulella bukovensis_ Koliha, 1924

* _Lingulella burnetensis_

* _Lingulella buttsi_

* _Lingulella bynguanoensis_ Roberts, 1990

* _Lingulella caelata_

* _Lingulella carrickensis_ Reed, 1917

* _Lingulella chapa_

* 澄江小舌形貝 _Lingulella chengjiangensis_ Jin, Hou & Wang, 1993

* _Lingulella chinchiaensis_ Kobayashi, 1933

* _Lingulella chinensis_

* _Lingulella chuarensis_

* _Lingulella circa_ Xu & Liu, 1984

* _Lingulella clarkei_

* _Lingulella clivosa_ Pelman, 1983

* _Lingulella clochensis_?

* _Lingulella columba_

* _Lingulella concinna_

* _Lingulella corralensis_ Rusconi, 1950?

* _Lingulella damesi_

* _Lingulella davisii_ McCoy, 1851

* _Lingulella decorticata_

* _Lingulella delgadoi_

* _Lingulella derwentii_ Postlethwaite, 1897

* _Lingulella desiderata_

* _Lingulella dimorpha_

* _Lingulella displosa_ Williams 1974

* _Lingulella dotensis_ Kobayashi, 1934

* _Lingulella dusaaulti_ Patte, 1929

* _Lingulella dzhavodiensis_ Sobolev, 1975

* _Lingulella elata_ Pelman, 1986

* _Lingulella ellsi_

* _Lingulella endopunctata_

* _Lingulella eucharis_ Resser, 1939

* _Lingulella euglypha_

* _Lingulella exilis_

* _Lingulella exortiva_

* _Lingulella expulsa_ Barrande, 1879

* _Lingulella fenxiangensis_ Wang, 1978

* _Lingulella ferox_

* _Lingulella ferruginea_ Salter in Salter & Hicks, 1867

* _Lingulella fostermontensis_

* _Lingulella franklinensis_

* _Lingulella galba_

* _Lingulella genei_

* _Lingulella glypta_

* _Lingulella grandis_

* _Lingulella granvillensis_

* _Lingulella haimantensis_

* _Lingulella halei_

* _Lingulella hatai_

* _Lingulella havliceki_ Mergl & Slehoferova, 1990

* _Lingulella hayaeri_

* _Lingulella hayesi_

* _Lingulella hesperia_ Williams & Curry, 1985

* _Lingulella hilli_

* _Lingulella hinganensis_ Su, 1980

* _Lingulella hitka_

* _Lingulella howardi_ Postlethwaite, 1897

* _Lingulella hsiensis_

* _Lingulella humaensis_ Su, 1980

* _Lingulella huronensis_

* _Lingulella ibicus_

* _Lingulella idahoensis_ Resser, 1938

* _Lingulella iddingsi_

* _Lingulella ino_

* _Lingulella insons Barr._

* _Lingulella intermedia_ Liu, Zhu & Xue, 1985

* _Lingulella irene_

* _Lingulella iris_

* _Lingulella jakutensis_

* _Lingulella jerseyensis_

* _Lingulella kalpinensis_ Zhang, 1981

* _Lingulella kanabensis_ Resser, 1945

* _Lingulella kanlingensis_ Zhang, 1981

* _Lingulella kayseri_ Sun, 1923

* _Lingulella kiddoi_

* _Lingulella kingstonensis_

* _Lingulella kitatiensis_ Aksarina, 1978

* _Lingulella lasherensis_ Rusconi, 1951

* _Lingulella lata_ Koliha, 1924

* _Lingulella lepis_ Salter, 1866

* _Lingulella libecovensis_ Koliha, 1918

* _Lingulella lineolata_

* _Lingulella linguata_ Pelman, 1977

* _Lingulella lirata_

* _Lingulella lithuanica_ Korkutis, 1971

* _Lingulella liui_

* _Lingulella lochmanae_

* _Lingulella longa_

* _Lingulella longula_

* _Lingulella major_ Teixeira, Ribeiro & Silva, 1964

* _Lingulella manchuriensis_

* _Lingulella mania_

* _Lingulella manticula_

* _Lingulella marcia_ Walcott, 1911

* _Lingulella martillensis_ Rusconi, 1952

* _Lingulella matthewi_ Koliha, 1921

* _Lingulella mcconnelli_ Walcott, 1889

* _Lingulella mechos/nechos_

* _Lingulella mehaeigueni_ Legrand, 1974

* _Lingulella miltoni_

* _Lingulella minus_

* _Lingulella minuscula_ Sobolev, 1975

* _Lingulella modesta_ Lochman, 1940

* _Lingulella montana_ Fenton & Fenton, 1936

* _Lingulella monticola_

* _Lingulella moosensis<_

* _Lingulella morsei_

* _Lingulella mosia_

* _Lingulella murcia var. templetonensis_ Chapman, 1929

* _Lingulella narrawayi_

* _Lingulella nepos_

* _Lingulella nerva_

* _Lingulella nicholsoni_ Callaway, 1877

* _Lingulella nina_

* _Lingulella nicholsoni_ Callaway, 1877

* _Lingulella paliformis_

* _Lingulella parvula_

* _Lingulella pela densis_ Rusconi, 1951

* _Lingulella pennsylvanica_

* _Lingulella perattenuata_

* _Lingulella petalon_ Davidson, 1868

* _Lingulella pingchouensis_

* _Lingulella pingchouensis_

* _Lingulella proveedorensis_ Cooper, 1952/1954

* _Lingulella putilla_

* _Lingulella quadrilateralis_

* _Lingulella quaestor_ Reed, 1917

* _Lingulella raymondi_ Clark, 1924

* _Lingulella remius/remus_

* _Lingulella reticulata_

* _Lingulella rideauensis_

* _Lingulella rotunda_ Pelman, 1977

* _Lingulella rugosilinea_

* _Lingulella sanfangensis_

* _Lingulella sculptilis_

* _Lingulella sequens_

* _Lingulella shansiensis_

* _Lingulella siliqua_

* _Lingulella silurica_ Yadrenkina, 1986

* _Lingulella solitariensis_ Rusconi, 1950

* _Lingulella spicata_

* _Lingulella spitiensis_

* _Lingulella stonei_

* _Lingulella ubdivisa_ Rusconi, 1950

* _Lingulella subfusula_ Su, 1980

* _Lingulella subparallela_

* _Lingulella sufi_ Mergl & Slehoferova, 1990

* _Lingulella sulcata_ Barrande, 1879

* _Lingulella taijiangensis_ Huang, Wang, Zhao & Dai, 1994

* _Lingulella takayamai_

* _Lingulella tangshihensias_

* _Lingulella tarpa_

* _Lingulella tenuitesta_

* _Lingulella terranovica_ Howell, 1943

* _Lingulella texana_

* _Lingulella texana_

* _Lingulella thems mckeei_ Resser, 1945

* _Lingulella tomkolensis_ Kobayashi, 1934

* _Lingulella tsuchidai_

* _Lingulella turneri_

* _Lingulella variabilis_ Pelman, 1977

* _Lingulella variolata_

* _Lingulella vermontensis_

* _Lingulella virginiensis_

* _Lingulella viridis_ Cobbold, 1921

* _Lingulella wanniecki_

* _Lingulella waptaensis_

* _Lingulella welleri_

* _Lingulella wirthi_

* _Lingulella wongi_

* _Lingulella yabei_

* _Lingulella yingtzuensie_ Kobayashi, 1931

* _Lingulella yongchengensis_ Zeng, 1977

* _Lingulella yuechiensis_ Xu, 1978

* _Lingulella zejszneri_ Bednarczyk, 1960

* _Lingulella zetus_

* _Lingulella zeus_

* _Lingulella zulupeana_ Rusconi, 1954

重新分配的物種

以下的物種現時已被置入其他屬。


* _L. acuminata_ Walcott, 1908 = _Lingulepis acuminata_ Conrad

* _L. acuta_ Pelman, 1977

* _L. acutangula_ = _Lingulepis acutangulus_ Roemer, 1849

* _L. africana_ Legrand, 1974



參考文獻