Description of adults of Octospiniferoides incognita SCHMIDT & HUGGHINS, 1973, (Acanthocephala: Neoechinorhynchidae) frorn a fish of Rondônia State, Brazil

Abstract

Adults of Octospini/eroides 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 - P.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 pm and the small posterior ones were 37 - 44 pm.