The Innervation of the Lateral Line System of Amphiuma

Kingsbury has given us an account of the general distribution of the sense-organs of the lateral line system in Amphiuma. According to him the arrangement in this form is almost typical of Amphibia. On the head: the supra-orbital group dorsal to the eye extends anteriorly to the tip of the snout; the infra-orbital group runs from the angle of the mouth ventral to the eye to the snout region; the oral line on the lower jaw passes along the lower lip; an angular series connects the oral with the infra-orbital; the gular series is found on the ventral surface of the head extending from the branchial region to the tip of the lower jaw; a post-orbital series passes posteriorly from the infra-orbital to meet the gular in the posterior branchial region; a jugular connects the angular with the meeting point of the gular and post-orbital. On the trunk are three longitudinal series: a dorsal, a lateral or median, and a ventral line