<Tr> <Td> Elapidae </Td> <Td> Boie, 1827 </Td> <Td> 55 </Td> <Td> 359 </Td> <Td> Elapids </Td> <Td> On land, worldwide in tropical and subtropical regions, except in Europe . Sea snakes occur in the Indian Ocean and the Pacific . </Td> </Tr> <Tr> <Td> Homalopsidae </Td> <Td> Bonaparte, 1845 </Td> <Td> 28 </Td> <Td> 53 </Td> <Td> Homalopsids </Td> <Td> Southeastern Asia and northern Australia . </Td> </Tr> <Tr> <Td> Lamprophiidae </Td> <Td> Fitzinger, 1843 </Td> <Td> 60 </Td> <Td> 314 </Td> <Td> Lamprophiids (includes former Atractaspididae as well as 6 other subfamilies formerly considered colubrids) </Td> <Td> Africa, southern Europe, and western - central Asia; two species into southeastern Asia . </Td> </Tr> <Tr> <Td> Loxocemidae </Td> <Td> Cope, 1861 </Td> <Td> </Td> <Td> </Td> <Td> Mexican burrowing snake </Td> <Td> Along the Pacific versant from Mexico south to Costa Rica . </Td> </Tr>

Where does the milk snake get its name