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Description of Oionchus sindhicus n. sp., and Morphometric Data on O. paraobtusus Jairajpuri and Khan, 1982 and O. obtusus Cobb, 1913 (Nematoda:Mononchida) from Pakistan

Description of Oionchus sindhicus n. sp., and Morphometric Data on O. paraobtusus Jairajpuri and Khan, 1982 and O. obtusus Cobb, 1913 (Nematoda:Mononchida) from Pakistan

Uzma Ishaq1, Shahnaz Dawar2, Nasira Kazi1, Erum Iqbal1* and Saboohi Raza3

1National Nematological Research Centre, University of Karachi, Karachi
2Department of Botany, University of Karachi, Karachi
3Department of Agriculture and Agribusiness Management, University of Karachi, Karachi, Pakistan
 
* Corresponding author: erum_i@yahoo.com

ABSTRACT

Oionchus sindhicus n. sp., is described from specimens collected from soil around the roots of cotton (Gossypium hirsutum L.) from Umerkot, Sindh, Pakistan. The new species is characterized by having a combination of characters: body length of female 0.7-1.0 mm, vulva at 56-59 percent of body length, anterior part of buccal cavity 5-7 µm wide, pharynx 198-238 µm long, tail 30-33 µm long, post uterine sac 10-16 µm in length, apex of dorsal tooth 3-5 µm from anterior end. Morphometric and morphological data of O. paraobtusus Jairajpuri and Khan, 1982 and O. obtusus Cobb, 1913 are also given. These species are described and redescribed for the first time from Pakistan.

 

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Pakistan Journal of Zoology

August

Vol. 54, Iss. 4, Pages 1501-2001

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