Georgi L L
J Nematol. 1988 Jan;20(1):47-57.
Xiphinema specimens were collected from orchards in southeastern, northeastern, and western New York. Total length, distance of vulva from anterior end, spear length (odontostyle plus odontophore), body diameter at vulva, tail length, anal body diameter, and length and diameter of hyaline tail tip were measured on fixed, glycerol-infiltrated adult females. Most specimens were identified as X. americanum or X. rivesi, but one western New York population was identified as X. californicum (a new record for New York). Multivariate analyses indicated that, with one exception, western New York populations of both X. americanum and X. rivesi were smaller and slimmer than their eastern counterparts. Regional differences were generally larger than differences attributed to host species.
从纽约东南部、东北部和西部的果园采集了剑线虫标本。对固定的、经甘油浸润的成年雌虫测量了全长、阴门前端距离、口针长度（吻针加吻鞘）、阴门处体径、尾长、肛门处体径以及透明尾尖的长度和直径。大多数标本被鉴定为美洲剑线虫或里氏剑线虫，但纽约西部的一个种群被鉴定为加利福尼亚剑线虫（纽约新记录）。多变量分析表明，除一个例外，纽约西部的美洲剑线虫和里氏剑线虫种群比东部的同类种群更小、更细长。区域差异通常大于因寄主物种导致的差异。
