Abstract:X. campinense n. sp. is described. It is a Xiphinema closely resembling X. pratense Loos, 1949, from which it is distinguished by its measurements, by the absence of any cuticular transverse striatum as well as by the number and location of the caudal papillae
“…chambersi Thorne, 1939 Tail short (less than four times body width at anus Two pairs of caudal papillae. brasiliense Lordello, 1951 Three pairs of caudal papillae. ....... radicicola Goodey, 1936 5.…”
mentioning
confidence: 99%
“…Four pairs of caudal papillae , campinense Lordello, 1951 More than four pairs of caudal papillae talie Meyl, 1953 * "Organ Z" in the females has reference to a structure seen in the genital tract of X. ebriense . This organ lies between the spermatheca and the uterus.…”
A few consolidated sources of descriptions and illustrations of plant and soil forms, in particular, are available and should be used along with the taxonomic keys. At best, keys are only attempted short cuts to" the recognition of certain specimens. In all cases check the decisions by referral to descriptions and illustrations of the nematodes. There are some excellent volumes available to workers who do not have access to the necessarily large reprint files of the taxonomist. The
“…chambersi Thorne, 1939 Tail short (less than four times body width at anus Two pairs of caudal papillae. brasiliense Lordello, 1951 Three pairs of caudal papillae. ....... radicicola Goodey, 1936 5.…”
mentioning
confidence: 99%
“…Four pairs of caudal papillae , campinense Lordello, 1951 More than four pairs of caudal papillae talie Meyl, 1953 * "Organ Z" in the females has reference to a structure seen in the genital tract of X. ebriense . This organ lies between the spermatheca and the uterus.…”
A few consolidated sources of descriptions and illustrations of plant and soil forms, in particular, are available and should be used along with the taxonomic keys. At best, keys are only attempted short cuts to" the recognition of certain specimens. In all cases check the decisions by referral to descriptions and illustrations of the nematodes. There are some excellent volumes available to workers who do not have access to the necessarily large reprint files of the taxonomist. The
The species of the genus Xiphinema Cobb, 1913 are listed and their current status is indicated. A revised polytomous key to the 172 valid species (excluding the X. americanum-group) is presented. Because of the very large number of species the key is split into eight groups on the basis of development of the anterior female genital branch, uterine differentiation and tail shape. In accordance with the opinion of Cohn & Sher (1972) X.vulgare Tarjan, 1964 is considered a synonym of X. setariae Luc, 1968. X. cubense Razzhivin, 1973 is placed in species inquirendae. Longidorella chappuisi (Schneider, 1935) is transferred to Xiphinema and its possible identity with X. hygrophilum Southey & Luc, 1974 is discussed.
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