The bighead searsid (Holtbyrnia anomala) is a species of tubeshoulder fish.[2][3]
It maximum length is 25 cm (9.8 in).[4] Its head is large, making up over a third of the fish's length. It has 25–31 gillrakers; 5–11 pyloric caecae. The snout is pointed, with premaxillary tusks pointing forward.[5]
It is dark red in colour.[6] Its photophores are rudimentary (except for the shoulder organ), hence its specific name anomala ("unusual").[7][8][9]
The bighead searsid lives in the North Atlantic Ocean; it is a mesopelagic fish, living at depths of 700–2,000 m (2,300–6,600 ft).[10][11]
The bighead searsid (Holtbyrnia anomala) is a species of tubeshoulder fish.
