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Rhabdochona indusi new species (Nematoda: Rhabdochonidae) in Rita rita (Siluriformes: Bagridae) from Sindh, Pakistan

By: Hira Soofi, Nadir Ali Birmani, Ali Murtaza Dharejo

Key Words: Fish nematodes, Catfish, Khaggo, Indus river, Pakistan

J. Bio. Env. Sci. 10(2), 220-230, February 2017.

Abstract

Nematodes of genus Rhabdochona Railliet, 1916 were collected from intestine of the catfish Rita rita and identified as new species Rhabdochona indusi. During current study on helminth parasites of Rita rita host, 125 nematodes (70 ♀ & 55 ♂) belong to the genus Rhabdochona were collected from 23 positive fishes out of 67 samples. Fishes were dissected and parasites were processed through the standard method and temporary slide were made. On the basis of differential diagnostic characteristics such as large striated body, greatest width in posterior region of male and anterior half of the female, 19 pairs of papillae, spicule size and shape, large spicule rounded anteriorly with small groove at lateral side and pointed posteriorly with curved ventrally without uniform thickness, smaller spicule rounded anteriorly and pointed posteriorly, shape of genital structures vulva marginal, anterior vulvar lip hook shape and posterior vulvar lip pointed, vagina muscular directed posteriorly and shape and size of eggs, such nematodes proposed as new species. The name of new species refers to the Indus River from where the host fishes were collected.

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Rhabdochona indusi new species (Nematoda: Rhabdochonidae) in Rita rita (Siluriformes: Bagridae) from Sindh, Pakistan

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Hira Soofi, Nadir Ali Birmani, Ali Murtaza Dharejo.
Rhabdochona indusi new species (Nematoda: Rhabdochonidae) in Rita rita (Siluriformes: Bagridae) from Sindh, Pakistan.
J. Bio. Env. Sci. 10(2), 220-230, February 2017.
http://www.innspub.net/jbes/rhabdochona-indusi-new-species-nematoda-rhabdochonidae-rita-rita-siluriformes-bagridae-sindh-pakistan/
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