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Descriptions of Some New and Known Species of Dorylaim Nematodes

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Six new species of Dorylaimida are described. Two of these belong to the superfamily Dorylaimoidea and the genera Ischiodorylaimus Andrássy, 1969 and Thornenema Andrissy, 1959; one to the supcrfamily Tylencholaimoidea and the genus 1ylencholaimus De Man, 1876; two to the superfamily Nygolaimoidea and the genera Paranygolaimus Heyns, 1968 and Laevides Heyns, 1968 and one to the superfamily Trichodoroidea and the genus Paratrichodorus Siddiqi, 1974. I.vchz*odorylai'mus minimus sp. n. is 2.54-2.87 mm long; b = 4.7-5.3; c = 16-18; c' = 4.4-4.9; V = 43-45; odontostyle 37-41 μm; spicules 68-73 μm and is closely related to I. gulliver (Andrássy, 1964) Andrássy, 1969, I. loeffleri (Andrássy, 1964) Andrássy, 1969 and I. ugandanus Andrássy & Banage in Andrássy, 1969. Thornenema andrassyi sp. n. is 1.44-1.62 mm long; b = 6.0-6.6; c = 9-11; c' = 5.6-6.2; V = 34-37; odontostyle 12-15 μm ; spicules 40-41 μm and is related to T. baldum (Thorne, 1939) Andrássy, 1959, T. maraouense Coomans & Carbonell, 1981 and T. samsoeni Coomans & Carbonell, 1981. Tylencholaimus notrus sp. n. is 0.80-0.87 mm long; b = 3.7-4.2; c = 35-40; c' = 1.0-1.2; V = 60-65; odontostyle 9 μm and is related to T. proximus Thorne, 1939, T. obscurus Jairajpuri, 1965 and T. chathami Yeates, 1979. Paranygolaimus confusus sp. n. is 1.84-2.64 mm long; b = 3.4-4.7; c = 64-85; c' = 0.9-1.0; V = 49-54; tooth 19-21 μm; spicules 51-55 μm; ventromedian supplements 5-7; gubernaculum 7-9 μm and is closely related to P. paulbuchneri Meyl, 1965. Laevides symmetricus sp. n. is 1.79-2.45 mm long; b = 3.5-4.2; c = 54-80; c' = 0.8-1.0; V = 50-54; tooth 12-15 μm; spicules 50-60 μm; gubernaculum 6-10 μm; ventromedian supplements 5-6 and is closely related to L. paraaquaticus (Paetzold, 1958) Ahmad & Jairajpuri, 1982. Paratrichodorus paraporosus sp. n. is 0.62-0.75 mm long; b = 4.6-5.8; c = 165-280 ; c' = 0.4-0.6; V = 57-60; onchiostyle 39-42 μm; spicules 28-36 μm; gubernaculum 6-10 μm; ventromedian supplements 4 and is related to P. mirzai (Siddiqi, 1960) Siddiqi, 1974; P. porosus (Allen, 1957) Siddiqi, 1974 and P. tunisiensis (Siddiqi, 1963) Siddiqi, 1974. Funaria ourasphaira Goseco, Ferris & Ferris, 1974 and Aporcelaimoides probulbum Heyns, 1965 are reported for the first time from India.

Affiliations: 1: Section of Nematology, Department of Zoology, Aligarh Muslim University, Aligarh - 202001, India

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/content/journals/10.1163/002825989x00179
1989-01-01
2016-12-11

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