acrochordidae acutotyphlops africa alethinophidia americas aniliidae animal anomalepididae anomochilidae asia atractaspididae australia biological classification blasius merrem boidae bolyeriidae central america china chordate cyclotyphlops cylindrophiidae elapidae europe hong kong india indonesia integrated taxonomic information system leopold fitzinger leptotyphlopidae list of serpentes families list of snakes list of typhlopid species and subspecies loxocemidae loyalty islands madagascar malaysia middle east new guinea nicolaus michael oppel papua new guinea philippines pythonidae ramphotyphlops ramphotyphlops braminus reptile rhinotyphlops sahara scolecophidia snake solomon islands south america squamata sulawesi thailand tropidophiidae type genus typhlops uropeltidae vertebrate viperidae wikimedia commons xenopeltidae xenotyphlops