本文包括对1992年,1996年和2001年在委内瑞拉收集的13种淡水鱼中发现的吸虫的系统调查。记录了以下15种吸虫物种:成虫:委内瑞拉Genarchellasp。n.,异象。n.,撒切尔和瓦雷拉,1981年,撒切尔,1999年,CrassicutscichrasomaeManter,1936年,ParspinacarapoOstrowskideNúñez,ArredontoetGildePertierra,2011年,毛竹。n.幼虫(囊虫):Clinostomatopsissorbens(Braun,1899),边缘诊所(鲁道夫,1819),C.德特隆·布劳恩,1899年,Ithyoclinostorumdimorphum(Diesing,1850),小脑Odhneriotremahyprocheala(Travassos,1922),Tylodelphyssp.,二倍体造口后sp.,双足括约肌。所有这些寄生虫都是首次从委内瑞拉报告的,其中许多发现代表了新的宿主记录。新物种G.委内瑞拉。n.,T.异象。n.和P.hoplerrythrinisp.n.从布鲁内龙(汉考克)(Loricariidae)的附属呼吸器官中收集,来自单株Hoplerrythrinusunitaeniatus(SpixetAgassiz)(Erythrinidae)的胃和H.unitaeniatus的肠,分别。简要描述和说明了所有寄生虫,以及有关其形态的问题,分类法,主机和地理分布进行了讨论。撒切尔和瓦雷拉,1981年被认为是M.spinicavumThatcheretVarella的初级同义词,1981年,CrassicutisopistthoseminisBravo-HollisetArroyo,1962年作为C.cichlasomaeManter的初级同义词,1936.
The present paper comprises a systematic survey of trematodes found in 13 species of freshwater fishes in Venezuela collected in 1992, 1996 and 2001. The following 15 trematode species were recorded: Adults: Genarchella venezuelaensis sp. n., Thometrema dissimilis sp. n., Megacoelium spinicavum Thatcher et Varella, 1981, Doradamphistoma bacuense Thatcher, 1999, Crassicutis cichlasomae Manter, 1936, Parspina carapo Ostrowski de Núñez, Arredonto et Gil de Pertierra, 2011, Phyllodistomoides hoplerythrini sp. n. Larvae (metacercariae): Clinostomatopsis sorbens (Braun, 1899), Clinostomum marginatum (Rudolphi, 1819), C. detruncatum Braun, 1899, Ithyoclinostomum dimorphum (Diesing, 1850), Odhneriotrema microcephala (Travassos, 1922), Tylodelphys sp., Posthodiplostomum sp., Sphincterodiplostomum sp. All these parasites are reported from Venezuela for the first time and many of these findings represent new host records. The new species G. venezuelaensis sp. n., T. dissimilis sp. n. and P. hoplerythrini sp. n. were collected from the accessory respiratory organ of Loricariichthys brunneus (Hancock) (Loricariidae), from the stomach of Hoplerythrinus unitaeniatus (Spix et Agassiz) (Erythrinidae) and from the intestine of H. unitaeniatus, respectively. All parasites are briefly described and illustrated and problems concerning their morphology, taxonomy, hosts and geographical distribution are discussed. Megacoelium spinispecum Thatcher et Varella, 1981 is considered a junior synonym of M. spinicavum Thatcher et Varella, 1981, and Crassicutis opisthoseminis Bravo-Hollis et Arroyo, 1962 as a junior synonym of C. cichlasomae Manter, 1936.