Gamidactylus piranhus sp. nov. (Copepoda, Vaigamidae) from the nasal fossae of serrasalmid fishes from the Três Marias Reservoir, Upper São Francisco River, Minas Gerais State, Brazil

Gamidactylus piranhus sp. nov. (Copepoda, Vaigamidae) from the nasal fossae of “San Francisco piranha”, Pygocentrus piraya (Cuvier, 1819) and.White piranha. Serrasalmus brandtii (Lütken, 1875) is described. The new species is similar to the type species of the genus, Gamidactylus jaraquensis Thatche...

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Bibliographic Details
Published in:Acta parasitologica 2008-09, Vol.53 (3), p.284-288
Main Authors: Thatcher, Vernon E., Santos, Michelle D., Brasil-Sato, Marilia C.
Format: Article
Language:English
Subjects:
Animal Systematics/Taxonomy/Biogeography
Biomedical and Life Sciences
Biomedicine
Brazil
Copepoda
Ecology
Fossils
Freshwater
Gamidactylus bryconis
Gamidactylus hoplius
Gamidactylus piranhus
Medical Microbiology
Microbiology
Original Paper
Parasitology
Pisces
Pygocentrus
Serrasalmus
Serrasalmus brandtii
São Francisco River
Três Marias Reservoir
Vaigamidae
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Description
Summary:Gamidactylus piranhus sp. nov. (Copepoda, Vaigamidae) from the nasal fossae of “San Francisco piranha”, Pygocentrus piraya (Cuvier, 1819) and.White piranha. Serrasalmus brandtii (Lütken, 1875) is described. The new species is similar to the type species of the genus, Gamidactylus jaraquensis Thatcher et Boeger, 1984, but differs from it in the following respects: the cephalothorax is shorter, the free thoracic segments are usually longer, leg 5 is reduced to a simple seta and a spine on the second antennal segment is lacking. Gamidactylus bryconis Varella, 1995 and Gamidactylus hoplius Varella et Malta, 1996, do not closely resemble the new species because they are much larger and both present leg 5 reduced to a double seta.
ISSN:1230-2821
1896-1851
DOI:10.2478/s11686-008-0034-7