Neotropical Monogenoidea 37. Redescription of Gyrodactylus superbus (Szidat, 1973) comb. n. and description of two new species of Gyrodactylus (Gyrodactylidea: Gyrodactylidae) from Corydoras paleatus and C. ehrhardti (Teleostei: Siluriformes: Callichthyidae) of Southern Brazil

Title:

Neotropical Monogenoidea 37. Redescription of Gyrodactylus superbus (Szidat, 1973) comb. n. and description of two new species of Gyrodactylus (Gyrodactylidea: Gyrodactylidae) from Corydoras paleatus and C. ehrhardti (Teleostei: Siluriformes: Callichthyidae) of Southern Brazil

Creator:

Popazoglo, Flávio and Boeger, Walter A.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:c1451efa-2f1f-42c7-9e1f-7fed56c52a64
uuid:c1451efa-2f1f-42c7-9e1f-7fed56c52a64
urnnbn:urn:nbn:cz:aba007-000aug

Subject:

Gyrodactylus, Paragyrodactylus, Paragyrodactyloides, Corydoras, Rio Pequeno, Rio Piraquara, Parana, and Brazil

Type:

model:internalpart and TEXT

Format:

print

Description:

Two new species of Gyrodactylus (Gyrodactylidae) are described from Corydoras paleatus (Jenyns) and Corydoras ehrhardti Stcindachner (Callichthyidae) of Rio Piraquara, Municipality of Piraquara, near Curitiba, Parana, Brazil; Gyrodactylus anisopharynx sp. n. and Gyrodactylus samirae sp. n. These species arc unique among the known Neotropical species of Gyrodactylus by the combination of several characters. Gyrodactylus anisopharynx is characterised by having hooks with point evenly curved, toe moderately pointed, round convex heel, straight sloping shelf, superficial bar with anterolateral projections and male copulatoiy organ armed with two rows of spinelets. Two variants of G. anisopharynx, of distinct pharynx size, are recognised: forma “largc-pharynx” and forma “small-pharynx". Gyrodactylus samirae is characterised by having hook with straight shaft, short slightly recurved point, truncate toe, trapezoidal heel, shelf slightly concave, orthogonal to shaft; anchors with relatively short superficial root; superficial bar with extremities lightly expanded; and male copulatory organ armed with two rows of spinelets. Paragyrodactyloides superbus (Szidat, 1973) is redescribed and transferred to Gyrodactylus based on examination of type and new specimens. Features previously considered as diagnostic for the genus are misinterpretations or primitive characters for Gyrodactylus spp.

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

105-110 and 27-32

Source:

Folia parasitologica | 2000 Volume:47 | Number:2

Harvested from:

CDK

Metadata only:

false