摘要

Anacanthorus franciscanus sp. n. and Anacanthorus brevicirrus sp. n. (Dactylogyridae) are described from the gills of the matrincha, Brycon orthotaenia Gunther (Characidae), from the Rio Sao Francisco in Brazil. Anacanthorus franciscanus most closely resembles Anacanthorus elegans and A. kruidenieri from the matrinchao, Brycon melanopterus, of the Amazon River Basin. It differs from these species in part by having the bulbous proximal end of the hook shank with two translucent regions. Anacanthorus brevicirrus resembles A. franciscanus, A. kruidenieri and A. elegans but is differentiated from these species by its short straight male copulatory organ and by having one translucent region in the bulbous base of the hook shank.

  • 出版日期2010-9