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''Letheobia'' is a genus of blind snake in the family Typhlopidae.〔Wallach, Van. (2005) "''Letheobia pauwelsi'', a new species of blindsnake from Gabon (Serpentes: Typhlopidae)." ''African Journal of Herpetology'' 54(1): pp. 85dash;&n91.〕 It is found in Africa.〔 In 1869, the ''Letheobia'' genus was established by Edward Drinker Cope based primarily on two specimens of ''Letheobia pallida'' from Zanzibar, but later also including ''Letheobia caeca'' (originally ''Onychocephalus cæcus'' Duméril, 1856) from Gabon. Peters, in 1874 when describing ''Onychocephalus lumbriciformis'' from Zanzibar and in 1878 ''Typhlops unitaeniatus'' from Kenya, considered ''Letheobia'' to be a subgenus. But, nonetheless, in 1881 Peters selected ''Letheobia caeca'' Duméril as the type species for the genus. In 1883 Boulenger decided that at best ''Letheobia'' was a subgenus of ''Typhlops'', and placed it as a junior synonym. Later in reconstructing ''Rhinotyphlops'' in 1974, Roux-Estève moved all of ''Letheobia'' into ''Rhinotyphlops'', mostly into her Groups IV, V and VI. However, molecular studies in the 2000s showed that the Rhinotyphlops, as conceived by Roux-Estève (1974), was polyphyletic, and that many if not all of Groups V and VI constituted a separate genus, for which the name ''Letheobia'' had priority.〔 (Abstract )〕 In 2007 Broadley and Wallach formally revived the genus ''Letheobia''. In 2013 Pyron, ''et al.'', considered with some certainty that ''Letheobia'' was a sister group to the combined genera ''Afrotyphlops'' and ''Megatyphlops'', while the three were then sister to ''Rhinotyphlops'', and the four were the sister to ''Typhlops''. ==Species== * ''Letheobia caeca'' Duméril, 1856 * ''Letheobia obtusa'' Peters, 1865 * ''Letheobia pallida'' Cope, 1869 * ''Letheobia pauwelsi'' Wallach, 2005 * ''Letheobia unitaeniata'' Peters, 1878 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Letheobia」の詳細全文を読む スポンサード リンク
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