THE GENUS THORNENEMA ANDRASSY, 1959 (NEMATODA: THORNENEMATIDAE) BY E. CARBONELL1) and A. COOMANS Instituut voor Dierkunde, Rijksuniversiteit Gent, Ledeganckstraat 35, B-9000 Gent, Belgium The genus Thornenema is redefined on the basis of known species and two new species. The genus Jairajpuria is synonymized with Thornenema and its two described species transferred to the latter genus. Three species described under Thornenema are considered species inquirendae. Redescriptions are based mainly on type material. A key to the species is given. Keywords: taxonomy, soil nematodes, identification key, descriptions. The genus Thornenema was erected by Andrissy (1959) to accommodate Dorylaimus lissus Thorne, 1939; D. baldus Thorne, 1939; D. cavalcantii Lordello, 1955; D. laevicapitatus Cobb in Thorne & Swanger, 1936; D. limnophilus de Man, 1880; D. thienemanni Schneider, 1937 which possess a narrow amalgamated lip region, a mono-opisthodelphic female genital system, a premedian and transverse vulva, elongate tails and for which males are unknown. Due to the absence of males Andrissy (l. c. ) thought that the females were either parthenogenetic or protandric hermaphroditic. Andrissy (1960) added D. sylphoides Williams, 1959 to his genus. Loof (1964) reported Thornenema cavalcantii from Venezuela and described two doubtful Thornenema species (spec. 1 & 2) which differ
Nematologica – Brill
Published: Jan 1, 1986
Keywords: soil nematodes; identification key; descriptions; taxonomy
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