Cutthroat eels are a family, Synaphobranchidae, of eels, the only members of the suborder Synaphobranchoidei. They are found worldwide in temperate and tropical seas.[1] [2]
Cutthroat eels range from 23to in length. They are bottom-dwelling fish, found in deep waters down to about 3700m (12,100feet).[3] They are distinguished by the presence of telescopic eyes in the larvae. In some classifications (for example, ITIS), this family is split, with Simenchelys in its own family, the Simenchelyidae.