DUPLACCESSORIUS ANDINUS N. GEN., N. SP. (DACTYLOGYRIDAE: ANCYROCEPHALINAE) FROM THE GILLS OF PERCICHTHYS TRUCHA (PERCIFORMES: PERCICHTHYIDAE) IN PATAGONIA, ARGENTINA

During a parasitological survey of Patagonian freshwater fishes, specimens of a new species of Monogenea were collected from the gills of Percichthys trucha (Perciformes: Percichthyidae). This species is described as the only member of a newly proposed genus of Ancyrocephalinae. Duplaccessorius n. g...

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Bibliographic Details
Published in:The Journal of parasitology 2004-10, Vol.90 (5), p.966-969
Main Authors: Viozzi, Gustavo P, Brugni, Norma
Format: Article
Language:English
Subjects:
Animals
Argentina
Biological and medical sciences
ECTOPARASITOLOGY
Etymology
Fish Diseases - parasitology
Freshwater fish
Freshwater fishes
Fundamental and applied biological sciences. Psychology
General aspects
General aspects and techniques. Study of several systematic groups. Models
Gills
Gills - parasitology
Gonads
Hooks
Invertebrates
Lakes
New species
Parasites
Parasitism
Parasitology
Percichthys trucha
Perciformes - parasitology
Pharynx
Physical characteristics
Platyhelminths - anatomy & histology
Platyhelminths - classification
Specimens
Trematode Infections - parasitology
Trematode Infections - veterinary
Vagina
Vestibules
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Description
Summary:During a parasitological survey of Patagonian freshwater fishes, specimens of a new species of Monogenea were collected from the gills of Percichthys trucha (Perciformes: Percichthyidae). This species is described as the only member of a newly proposed genus of Ancyrocephalinae. Duplaccessorius n. gen. (Dactylogyridae, Ancyrocephalinae) is characterized by hooks with 2 subunits, gonads in tandem, a coiled male copulatory organ with counterclockwise rings, an accessory piece formed by 2 distinct parts, and a nonsclerotized sinistrolateral vagina with a funnel shape vestibule. Duplaccessorius andinus n. sp. infects the gills of P. trucha (Cuvier and Valenciennes, 1840) from Andean Patagonian lakes, being the first species of Ancyrocephalinae described from a South American percichthyid.
ISSN:0022-3395
1937-2345
DOI:10.1645/GE-261R