Common name: Nudibranchs

Polyceridae is a family of colorful and diverse nudibranchs, commonly known as sea slugs. They are known for their striking forms and patterns, which make them a popular subject for underwater photographers and a fascinating addition to specialized marine aquariums. Members of this family often exhibit intricate chemical defenses derived from their diet, which can include toxic sponges and bryozoans. They are not recommended for beginner aquarists due to their specific dietary and environmental needs.

1. Common name: Crimora lutea

   Scientific name: Crimora lutea
2. 
   Common name: crested nembrotha

   Scientific name: Nembrotha cristata
3. 
   Common name: lined nembrotha

   Scientific name: Nembrotha lineolata
4. 
   Common name: bighorn nembrotha

   Scientific name: Nembrotha megalocera
5. 
   Common name: purple-lined nembrotha

   Scientific name: Nembrotha purpureolineata
6. 
   Common name: Nembrotha yonowae

   Scientific name: Nembrotha yonowae
7. 
   Common name: Four-lined Nudibranch

   Scientific name: Polycera quadrilineata
8. 
   Common name: slender roboastra

   Scientific name: Roboastra gracilis
9. 
   Common name: Gloomy Nudibranch

   Scientific name: Tambja morosa
10. 
    Common name: Painted Thecacera

    Scientific name: Thecacera picta