Pinctada margaritifera, commonly known as the black-lipped pearl oyster, is found in the Indo-Pacific region, primarily within tropical coral reefs. This species is renowned for producing black pearls, which are highly valued in the jewelry industry.
The other options are different species of marine organisms:
Aplysia dactylomela is a species of sea hare (a type of marine gastropod).
Dentalium neohexagonum is a species of tusk shell (scaphopod mollusk).
Chaetopleura apiculata is a species of polyplacophoran mollusk (chiton).