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湖南剑线虫（XiphinemahunanienseWang＆Wu，1992）为上海首次发现，它具有极靠前的阴门，前生殖管完全退化，后生殖管发育完全，锥形尾端有一约1／3尾长的突起物。研究表明，广东雀梅根围的剑线虫（原鉴定为X．brasilienseLordello，1951）与上海茶梅根围发现的湖南剑线虫形态完全一致。讨论了湖南剑线虫的分类地位，认为原始描述中的后生殖管分叉为变异类型；鉴于湖南剑线虫独特的形态特征，如较长的尾端凸、极靠前的阴门及唇区形态等重要的形态特征不同于太平洋剑线虫（XiphinemaradicicolaGoodey,1936）。因此，不同意Loof等将湖南剑线虫作为太平洋剑线虫的同物异名，同时给出了鉴定代码A1B4C5D45E1F2（3）G23H2I3J5K2L1。还简单描述了美洲剑线虫（X．americanumCobb，1913）的形态。
For the first time in Shanghai, Xiphinemahunaniense Wang & Wu (1992) found that it had an extremely prevalent vulvae. The anterior seminiferous duct completely degenerated and the posterior gonadal developed completely. The caudal caudal end had an approximately 1/3 caudal protuberance. Studies have shown that the sword nematode (the original identification as X.brasilienseLordello, 1951) of Guangdong Memei gland root circumference and Shanghai Chameleong found Hunan sword nematode morphology is exactly the same. The taxonomic status of Hunan sword nematode was discussed. It was considered that the protozoan bifurcation was the variation type in the original description. In view of the unique morphological characteristics of Hunan sword nematode, such as long caudate end convex, The important morphological features are different from those of the XiphinemaradicicolaGoodey (1936). Therefore, I do not agree with Loof and other Hunan sword nematode as synonym of Pacific sword nematode, at the same time give the identification code A1B4C5D45E1F2 (3) G23H2I3J5K2L1. The morphology of X. americanaum Cobb (1913) is also briefly described.