Figure 7:SEM of the lateral line system of red tail shark. A: The lateral line (arrowheads) branch in the head into supraorbital (SO), infraorbital (IO) and otic (OT). B: Pores of lateral lines (large square, inserted figure, arrowhead). C: Higher magnification of small square in Figure B showing tuberous receptor organ (arrowhead). D: Tuberous receptor organ (arrowhead) showing microvilli projecting from the receptor cells (square).