The opal chimaera (''Chimaera opalescens'') is a

chimaera Chimaeras are Chondrichthyes, cartilaginous fish in the order (biology), order Chimaeriformes (), known informally as ghost sharks, rat fish (not to be confused with rattails), spookfish, or rabbit fish; the last two names are also applied to B ...

species in the family

Chimaeridae The Chimaeridae, or short-nosed chimaeras, are a family (biology), family of cartilaginous fish. They resemble other Chimaeriformes, chimaeras in general form and habits, but have short, rounded snouts, without the modifications found in relate ...

, which lives in the northeastern Atlantic Ocean.

References

Chimaera Fish of the Atlantic Ocean {{holocephalan-stub