New Values on user_gender don't show up on output

I wanted to add more gender options to go with the custom ranks so I changed list_gender values to:
[list type=decimal][*]No Gender[*]Male Human[*]Female Human[*]Male Vulcan[*]Female Vulcan[/list]
I only got that far when I noticed that they are all selectable from the drop down box, but only the first 3 show up on the profile and in the member list, which are the original list_gender values just renamed slightly. The two new ones for values 4 and 5 have no output.
What have I missed or done wrong?
[list type=decimal][*]No Gender[*]Male Human[*]Female Human[*]Male Vulcan[*]Female Vulcan[/list]
I only got that far when I noticed that they are all selectable from the drop down box, but only the first 3 show up on the profile and in the member list, which are the original list_gender values just renamed slightly. The two new ones for values 4 and 5 have no output.
What have I missed or done wrong?