Cavalcante P H O, Moravec F, Santos C P
Instituto Federal do Acre - IFAC,Xapuri,AC,Brazil.
Institute of Parasitology, Biology Centre of the Czech Academy of Sciences,Branišovská 31,37005 České Budějovice,Czech Republic.
J Helminthol. 2018 Jan;92(1):109-115. doi: 10.1017/S0022149X1700013X. Epub 2017 Mar 9.
A new nematode species, Philometroides acreanensis n. sp. (Philometridae), is described from female specimens recovered from the stomach wall of the freshwater catfish Pimelodus blochii Valenciennes (Pimelodidae) collected in the Acre River (Amazon River basin), Acre State, Brazil. Based on examination by light and scanning electron microscopy, the new species differs from the two other South American congeneric species mainly in the body length of the gravid female (240-280 mm), the length of the oesophagus (1.25 mm in holotype) representing 0.5% of the entire body length, the range of cuticular embossment, as well as the location in the host (stomach), order of the fish host (Siluriformes) and the geographical distribution (Amazon River drainage system). This is the third known species of Philometroides Yamaguti, 1935 reported from South America. A key to species of Philometroides occurring in the fish of America is provided.
一种新的线虫物种，阿克里菲尔ometraides acreanensis新种（菲尔ometraidae科），是从巴西阿克里州（亚马逊河流域）阿克里河采集的淡水鲶鱼Pimelodus blochii Valenciennes（Pimelodidae科）胃壁中回收的雌性标本中描述的。通过光学显微镜和扫描电子显微镜检查，该新物种与其他两个南美同属物种的主要区别在于成熟雌虫的体长（240-280毫米）、食管长度（模式标本为1.25毫米）占整个体长的0.5%、表皮纹饰范围，以及在宿主中的位置（胃）、鱼类宿主的目（鲇形目）和地理分布（亚马逊河排水系统）。这是1935年Yamaguti报道的来自南美洲的第三种已知的菲尔ometraides物种。提供了美洲鱼类中菲尔ometraides物种的检索表。
