Morphological variation and a remarkable new sexual dimorphism in the Pseudocyclops xiphophorus population of Lake Faro in northeastern Sicily
The population of P.xiphophorus in Lake Faro exhibits variation in the form Pod of caudal seta V.In some specimens of both sexes, this seta is spatulate but in others it is slender and unmodified.Occasional specimens are asymmetrical.In addition to this variation in caudal seta form, the Lake Faro population displays variation in male body length a