In the HBase shell, the help file shows us that there are several allowable syntaxes for creating a table:
create \'tableName\', {NAME => \'colFamily\', VER
What eventually became clear after experimentation was that the Shell syntax will accept a set of Column Family dictionaries, and the SPLIT dictionary is really its own animal (which makes sense as it modifies the whole table, not just a particular column family.
So an additional useful example to have would be:
create 'tableName', {NAME => 'colFam', VERSIONS => 2, COMPRESSION => 'SNAPPY'},
{SPLITS => ['333','666','FOO']}
Note that the splits dictionary is separate from the column family dictionary; presumably we could still enter a set of column families and then end with the Splits dictionary.