Lingulella

**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