[= Dolichosina Cooper, 1983; Mimorina Cooper, 1983]
[Type species = Terebratula uva Broderip, 1833 (p. 124)]
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Large to very large, elongate oval to subcircular; ventribiconvex, anterior commissure usually rectimarginate, occasionally broadly uniplicate; smooth or with faint, radial or zigzag capillae; beak usually short, suberect; foramen usually large, submesothyrid, labiate; symphytium wholly or partly visible; pedicle collar short, teeth triangular, narrow; low myophragm may be present; cardinal process transverse semiellipse; outer hinge plates variable in width and length; attached near dorsal edge of crural bases; loop variable; usually widely triangular, crural processes located near socket openings, transverse band relatively narrow, variable; spicules abundant.
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| Eocene - Present
Diagnosis from volume 5 of the
Treatise on Invertebrate Paleontology (2006)
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Liothyrella uva (Broderip, 1833)
Type locality: “in sinu Tehuantepec” - “found by Captain Dare, attached to a sea-vorn bivalve, at a depth of 10-12fathoms” [18-22 m].
Depth range: 0 - 2273 m
Terebratula uva Broderip, 1833
Liothyris uva Davidson, 1886
?Terebratula uva Gray, 1853
Terebratula moseleyi Fischer & Œhlert, 1892
Liothyrella antarctica Blochmann, 1906
Liothyrina uva Blochmann, 1906
Liothyrina moseleyi Dall, 1908
Liothyrina uva var. notorcadensis Jakson, 1912
Liothyrina antarctica Joubin, 1914
?Liothyrella ovata Thomson, 1918
Liothyrella notorcadensis Thomson, 1918
Gryphus antarcticus Dall, 1920
Gryphus uva Dall, 1921
Liothyrella oblonga Cooper, 1973
Liothyrella antartica georgina Zezina 1980
Liothyrella "uva" Cooper, 1983
Liothyrella uva georgina Foster, 1974
Liothyrella uva notorcadensis Foster, 1974
Liothyrella uva cancerderma Foster, 1974
Liothyris uva Zezina, 1976
Liothyrella georgina Cooper, 1982
Liothyrella fosteri Cooper, 1982
Liothyrella expansa Cooper, 1982
Liothyrella notocadensis Cooper, 1982
Diagnose in preparation -
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Liothyrella moseleyi (Davidson, 1878)
Type locality: “west of Kergelen Island, 210 fathoms [lat. 46°47'S., long. 51° 37’E. ; depth 210 fathoms” [384 m].
Depth range: some meters - 700 m
Terebratula moseleyi Davidson, 1878
Liothyris moseleyi Davidson, 1886
Terebratula (Liothyrina) moseleyi Davidson, 1892
Liothyrina moseleyi Blochmann, 1906
Liothyrella moseleyi Hertlein & Grant, 1944
Diagnosis - in preparation
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Liothyrella winteri (Blochmann, 1906)
Type locality: “Valdivia, Station 165, St. Paul Tiefe 680 m [38°40,0'S, 77°38,6'E, depth 672 m, NE of Saint-Paul Island, Valdivia-Expedition, 1898-1899].
Depth range: 672 - 680 m
Liothyrina winteri Blochmann, 1906
Liothyrella winteri Thomson, 1927
Diagnosis - in preparation
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Liothyrella neozelanica Thomson, 1918
Type locality: “on a flat stone entangled on a fishing line of 200 fathoms length, Cook Strait, off Wellington, New Zealand” [370 m].
Depth range: 6 - 1939 m
Liothyrina sp. Jackson, 1918
Liothyris neozelanica Zezina, 1976
Diagnosis - in preparation
Should be added:
Muscle disposition: see Fig. in front -
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Disposition of the pedicle and pedicles muscles - sagittal section
(from Richardson, 1979)
Muscle attachment (from Richardson, 1979)
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L. delsolari Cooper, 1982
Type locality: off Peru [4°00'S, 80°30'W]
Depth range: 760 - 1208 m
Diagnosis - in preparation
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L. southernsurveyori Verhoeff, 2025
Type locality: off SE Tasmania, off (~east of) the Hippolites, ~43.1°S, 148.2–3°E; 960–1000 m depth, FV Challenger, CR036–CR040 (station unknown)
Depth range: 320 - 1650 m
Diagnosis (Verhoeff, 2025)
Liothyrella of large size (up to 42.4 mm), outline rounded sub-pentagonal, with widest point just anterior of midway along valve length, biconvex, with lateral commissure curved ventrally (weakly to strongly), and with anterior commissure forming a dorsally directed arc (without apparent sulcation). Larger specimens becoming increasingly thickened/inflated, causing commissures to become indented. Hinge plates narrow-triangular (OHP angle 44–70°), loop variable, crura distinct and free from hinge plates, converging medially, descending and transverse bands approximately triangular in shape due to bands diverging, loop wide (loop width index 65%–74%), elongate (loop length index 39%–47%), and with weak median fold. Beak erect to sub-erect, foramen sub-apical but falling within a deeply cut antero-posteriorly directed groove on thickened specimens.
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