Otarian

The Otarian are a semi-aquatic sentient species from the planet Otar 2.

Physiology
The Otari are a sentient species from the ocean world of Otari 2. They evolved from aquatic creatures that made their way onto the frozen islands of their planet about ten million years ago. In their current form they resemble humanoid seals.

Culture
The Otarians are matriarchal, with females maintaining the aqua-farms while the males go abroad to trade and hunt in small groups. The two sexes rarely intermingle save until the mating festivals.

Source

 * Star Trek Waypoint 005 (2017)