Description of adults of Octospiniferoides incognita Schmidt & Hugghins, 1973, (Acanthocephala: Neoechinorhynchidae) from a fish of Rondônia State, Brazil

Abstract

Adults of Octospiniferoides incognita SCHMIDT & HUGGHINS, 1973, (Acanthocephala: Neoechinorhynchidae) are described for the first time. The host fish, Schizodon fasciatum AGASSIZ, was taken from the Guaporé River of Rondônia State, Brazil. Three male specimens were 3.7-4.9 mm long and six females were 4.2-10.7 mm long. Large proboscis hooks in the anterior circle were 78-88 micrometers; medium hooks were 44-66 μm and the small posterior ones were 37-44 μm.