Spinal deformity in a whale shark, Rhincodon typus (Smith 1828), encountered in the northern Gulf of Mexico, with notes on its movement patterns.

This note details the first formal report of a spinal deformation in whale sharks, Rhincodon typus. An individual whale shark with suspected kypholordoscoliosis was observed at Ewing Bank in the Gulf of Mexico during aggregation events in 2010 and 2013. Despite the significant deformity, the shark was observed feeding on fish eggs at the surface during both encounters. Based on satellite tag tracking, its movements, temperature preferences, and depth use were within the range of other whale sharks from the region.