Pinecone fishes and pineapple fishes are the common names for the members of Monocentridae family. They are recognized by their rounded, compressed and yellow colour body, greatly enlarged free spines in dorsal or pelvic fins, and greatly enlarged and plate-like scales.
Pinecone fishes are found in the Indian and Pacific oceans. They are demersal fishes occurring in school from the depth of 3 m to about 300 m. They are nocturnal fishes, feeding on zooplankton.
There are 2 genera and about 4 species worldwide.