本文包括对蠕虫(吸虫,在1999年3月在厄瓜多尔收集的9种淡水鱼中发现了棘突和线虫),并在1992年,1996年和2001年从委内瑞拉的两栖动物和两种淡水鱼中收集了(吸虫和棘突)。记录了以下17种蠕虫:吸虫:Prosthenhysteraornamentosasp。n.,P.obesa(Diesing,1850),Crassicutisintermedius(Szidat,1954),C.cichlasomaeManter,1936年和Glypthelminseleutherodactylisp。n.Acanthocephala:QuadrigyrustorquatusVanCleave,1920年,Gracilisentisvariabilis(Diesing,1851年)和新echinorhynchus(新echinorhynchus)ecuadorissp。n.线虫:CosmoxynemavianaiTravassos,1949年,TravnematravnemaPereira,1938年,图泽塔·厄瓜多尔·佩特,1987年,Sprentascaris下颌PetteretCassone,1984年,Sprentascarissp。,Contracaecumsp.1型幼虫,Contracaecumsp.2型幼虫,普罗卡玛拉努斯(普罗卡玛拉努斯),诺罗尼亚和劳拉,1976年和Procamallanus(Spirocamallanus)sp。juv.几乎所有这些寄生虫都是首次从厄瓜多尔或委内瑞拉报告的,其中许多发现代表了新的宿主记录。新物种P.ornamentosasp.n.是从一个身份不明的肛门类(Anostomidae,Characiformes)在厄瓜多尔,G.eleutherodactylisp.n.来自青蛙的消化道。(Eleutherodactylidae,Anura)在委内瑞拉和N.(N.)厄瓜多尔sp.n.来自Lebiasinasp.的肠道。(Lebiasinidae,Characiformes)在厄瓜多尔。大多数寄生虫被简要描述和说明,以及关于它们的形态的问题,分类法,主机和地理分布进行了讨论。
The present paper comprises a systematic survey of helminths (trematodes, an acanthocephalan and nematodes) found in nine species of freshwater fishes in Ecuador collected in March 1999 and those (a trematode and acanthocephalans) collected from an amphibian and two species of freshwater fishes in Venezuela in 1992, 1996 and 2001. The following 17 helminth species were recorded: Trematoda: Prosthenhystera ornamentosa sp. n., P. obesa (Diesing, 1850), Crassicutis intermedius (Szidat, 1954), C. cichlasomae Manter, 1936 and Glypthelmins eleutherodactyli sp. n. Acanthocephala: Quadrigyrus torquatus Van Cleave, 1920, Gracilisentis variabilis (Diesing, 1851) and Neoechinorhynchus (Neoechinorhynchus) ecuadoris sp. n. Nematoda: Cosmoxynema vianai Travassos, 1949, Travnema travnema Pereira, 1938, Touzeta ecuadoris Petter, 1987, Sprentascaris hypostomi Petter et Cassone, 1984, Sprentascaris sp., Contracaecum sp. Type 1 larvae, Contracaecum sp. Type 2 larvae, Procamallanus (Procamallanus) peraccuratus Pinto, Noronha et Rolas, 1976 and Procamallanus (Spirocamallanus) sp. juv. Nearly all of these parasites are reported from Ecuador or Venezuela for the first time and many of these findings represent new host records. The new species P. ornamentosa sp. n. was collected from the gall-bladder of an unidentified anostomid (Anostomidae, Characiformes) in Ecuador, G. eleutherodactyli sp. n. from the digestive tract of the frog Eleutherodactylus sp. (Eleutherodactylidae, Anura) in Venezuela and N. (N.) ecuadoris sp. n. from the intestine of Lebiasina sp. (Lebiasinidae, Characiformes) in Ecuador. Most parasites are briefly described and illustrated and problems concerning their morphology, taxonomy, hosts and geographical distribution are discussed.