Common name: Side-gilled slugs

Pleurobranchidae, commonly known as side-gilled slugs or pleurobranchs, are a family of sea slugs that exhibit a unique gill structure located on the right side of their body, beneath the mantle. These nocturnal creatures are often found on reef structures and are known for their diverse color patterns and sizes. They are not common in the aquarium trade, but some hobbyists may appreciate their unusual appearance and scavenging habits. They feed on a variety of foods, including detritus, dead animals, and sometimes live prey, making them a potential clean-up crew in a controlled environment.

1. 
   Common name: Marten's Berthella

   Scientific name: Berthella martensi
2. 
   Common name: Forskal's side-gilled slug

   Scientific name: Pleurobranchus forskalii
3. 
   Common name: grand pleurobranch

   Scientific name: Pleurobranchus grandis