Ophiodon

Ophiodon is a genus of ray-finned fish in the family Hexagrammidae, commonly known as greenlings. The genus is monotypic, containing only one species: the lingcod (Ophiodon elongatus).

The primary distinguishing characteristic of the Ophiodon genus is its single species, the lingcod. Lingcod are native to the North Pacific Ocean, primarily along the western coast of North America from Alaska to Baja California. They are a commercially and recreationally important species, known for their firm, white flesh and voracious predatory behavior.

Lingcod, and therefore the Ophiodon genus, are characterized by their large mouths filled with numerous sharp teeth. They exhibit significant color variation, ranging from gray and brown to green and bluish hues, often with mottled patterns. Lingcod are bottom-dwelling fish, typically found on rocky reefs and kelp forests. Their diet consists primarily of other fish, crustaceans, and cephalopods.

The classification of Ophiodon within the Hexagrammidae family is based on morphological and genetic characteristics shared with other greenling species, such as their elongated bodies and multiple lateral lines. However, the unique characteristics of the lingcod warrant its placement in its own genus. The name Ophiodon is derived from Greek roots, likely referring to the snake-like appearance of its elongated body and prominent dentition ("ophis" meaning snake and "odon" meaning tooth).