Morphology of the cephalic lateral line of Leuciscus idus analysed using photogrammetry. Structures were visualized using methylene blue staining. (a) Right lateral, (b) left lateral, (c) anterior, (d) dorsal and (e) ventral views. IO, infraorbital canal; MA, mandibular canal; OT, otic canal; PO, postotic canal; POP, preopercular canal; sc, side canal; SO, supraorbital canal; ST, supratemporal commissure; T, temporal canal.