Description of the lateral line in the stringray, Urotrygon rogersi (Myliobatiformes: Urotrygonidae)

Abstract

Lateral line description of Urotrygon rogersi was performed, which is composed by a series of sensorial canals of variable length, depending on the position of each canal, distributed on the dorsal and ventral sides of the body, the latter where the majority of canals are found. The hyomandibular canal possesses 9 dorsal innervations and 24 ventral ramifications. The morphological pattern observed in the lateral line is consistent with the Urotrygon group, nonetheless a detailed description of the lateral line of their congeners is necessary to analyze and discern specific patterns.