The title of First Mate was used by Slith clans to designate the most important mate of the alpha male. This First Mate held power over all the other females and the younger members of the clan. An example is Dresk Kist, who held the position of First Mate within her own tribe.
- Galaxy Guide 2: Yavin and Bespin
- Galaxy Guide 2: Yavin and Bespin, Second Edition