After Uetz, Etzold & Chenna, 1995-2015 [“The Reptile Database”]

<==o Anomalepididae Taylor, 1939 [Anomalepidae Taylor, 1939; Anomalepidinae Amaral, 1954; Anomalepididae Robb & H.M. Smith, 1966] (Dawn Blind Snakes)
   |--o Anomalepis Jan, 1860
   |  |-- A. aspinosus Taylor, 1939
   |  |-- A. colombia Marx, 1953
   |  |-- A. flavapices Peters, 1957
   |  `-- A. mexicanus Jan, 1860 [type]
   |--o Helminthophis Peters, 1860 [Helminthophis Peters, 1860; Idiotyphlops Jan, in Jan & Sordelli, 1860]
   |  |-- H. flavoterminatus (Peters, 1857)
   |  |-- H. frontalis (Peters, 1860) [type]
   |  `-- H. praeocularis Amaral, 1924
   |--o Liotyphlops Peters, 1881 [Rhinotyphlops Peters, 1857 in partim; Liotyphlops Peters, 1881]
   |  |-- L. albirostris (Peters, 1857) [type]
   |  |-- L. anops (Cope, 1899)
   |  |-- L. argaleus Dixon & Kofron, 1984
   |  |-- L. beui (Amaral, 1924)
   |  |-- L. caissara Centeno, Sawaya & Germano, 2010
   |  |-- L. haadi Sliva-Haad, Franco & Maldonado, 2008
   |  |-- L. schubarti Vanzolini, 1948
   |  |-- L. ternetzii (Boulenger, 1896)
   |  |-- L. trefauti Freire, Caramaschi, Suzart Argolo, 2007
   |  `-- L. wilderi (Garman, 1883)
   `--o Typhlophis Fitzinger, 1843 [Typhlophis Fitzinger, 1843; Cephalolepis Duméril & Bibron, 1844]
      `-- T. squamosus (Schlegel, 1839) [Typhlops squamosus Schlegel, 1839; Cephalolepis leucocephalus Duméril & Bibron, 1844; Typhlops squammosus Duméril & Bibron, 1844; Anilios(?) squamosus Gary, 1845; Cephalolepis squamosus Jan & Sorselli, 1860; Typhlophis squamosus Boulenger, 1893; Typhlophis squamosus Gasc & Rodrigues, 1980; Typhlophis squamosus Starace, 1998; Typhlophis ayarzaguenai Señaris, 1998; Typhlophis squamosus McDiarmid, Campbell & Touré, 1999; Typhlophis squamosus Gower et al. 2012] (Trinidad Blind Snake)

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