G. Myxine Linnaeus 1758

Five or six gill pouches on each side opening to the exterior by a single aperture on the ventral surface, close in front of the origin of the ventral finfold, the left-hand gill opening, which receives the oesophagocutaneous duct, being much the larger, fleshy flap overhanging the nostril anteriorly; nostril close to tip of snout; snout with 6 barbels flanking both nostril and mouth; each side with a series of large mucous pores, segmentally arranged, extending from a short distance behind the mouth rearward nearly to the caudal extremity.