I have already fixed the Table.tbl file, I am just waiting for someone to transfer those nidorans for me to see if it uses the Gender symbols that is in the name in screens, or if there is special one that matches the ones form 4th gen.
English 4th gen nidoran when transferred uses the gender symbol found in the Japanese game since it matches, not the smaller ones used in the B/W name in screen, this may be true for Japanese nidoran as well, there could be a special character that is used for the old 4th gen Japanese gender symbols.