小舌形貝屬（學名：）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（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 

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