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Umbonium

Umbonium (Ethalia) carneolata Melvill 1897, ( 13 ) Afrique S.,
Gastropoda.com 
Kwansei DataBase 
Umbonium conicum Adams & Reeve , ( 5 10 ) Ocean Pacifique O.,
Umbonium costatum Kiener 1838, ( 10 25 ) Ocean Pacifique O.,
Seashells of World, p.40
Shells Philippines, p.34 pl.5
Kwansei DataBase 
Umbonium elegans Kiener 1838, ( 12 17 ) Ocean Pacifique O.,
Seashells of World, p.40
Shells Philippines, p.34 pl.5
Umbonium (Ethalia) floccata Sowerby 1903, ( 5 10 ) Japon,
Gastropoda.com 
Kwansei DataBase 
Umbonium giganteum Lesson 1831, ( 25 35 ) Ocean Pacifique,
Compendium Seashells, p.44
Coquil Oliver Bordas, p.34
Guide Delachaux & N., pl.5
Guide Nathan Sabelli, n.129
Seashells of World, p.40
Kwansei DataBase 
Umbonium (Ethalia) guamensis Quoy & Gaimard 1834, ( 12 ) Ocean Pacifique S.O.,
Australian B.WILSON, T.1 p.93 pl.11
Compendium Seashells, p.43
Eurasia Shells  Taiwan, 16.0mm
Umbonium moniliferum Lamarck 1822, ( 15 20 ) Japon,
Coquil Oliver Bordas, p.34
Guide Nathan Sabelli, n.129
Seashells of World, p.40
Umbonium (Ethalia) montrouzieri (Souberbie 1860), ( 15 ) Philippines,
Umbonium (Ethalia) pulchella Adams 1855, ( 7 ) Indo Pacifique O.,
Australian B.WILSON, T.1 p.93 pl.11
Umbonium (Ethalia) stenomphala Pilsbry , ( 10 ) Japon,
Umbonium superbum Gould , ( 15 20 ) Japon,
Umbonium vestiarium (Linne 1758), ( 10 20 ) Indo Pacifique,
[Trochus],
Australian B.WILSON, T.1 p.95 pl.11
Compendium Seashells, p.43
Coquil Oliver Bordas, p.34
Europ.V.I Poppe-Goto, p.87 pl.9
Hainan Chine, p. 5
Reunion Mauri.Drivas, p.36 pl.3
Seashells of World, p.40
Shells Philippines, p.34 pl.4
Femorale Shell 
Gastropoda.com 
Kwansei DataBase 
Molluscan Pictures 
Umbonium zelandicum Adams A. 1854, ( 15 18 ) Nouvelle Zelande,
Compendium Seashells, p.43
Seashells of World, p.40