Norman O. Dronen

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Species of the genus Lepidapedon are divided into various groups and subgroups based on vitelline distribution relative to the acetabulum and anterior extent of the excretory vesicle. Members of this genus predominantly parasitise gadiform fishes and are commonly collected from relatively deep waters. A recent study of deep-sea helminths from macrourids of(More)
The annual prevalence of Leishmania mexicana in Neotoma micropus from 16 southern Texas localities was determined by screening 192 N. micropus using in vitro culture. Eight woodrats also were screened using the polymerase chain reaction (PCR). Forty-six Sigmodon hispidus from four localities were also tested. Seasonal transmission was investigated through(More)
Trematodes found in 10 Numenius americanus from the Galveston area included Pelmatostomum americanum sp. n. (Echinostomatidae) from the intestine; Paratrema numenii gen. et sp. n. (Philophthalmidae) from the Bursa Fabricii and lower intestine; and the following previously known species, all representing new host records: Maritrema arenaria and(More)
Two black-necked stilts, Himantopus mexicanus (Recurvirostridae), from the Texas Gulf coast, died while in the care of bird rehabilitators and were found to be infected with Neoallopyge americanensis n. gen., n. sp. Neoallopyge n. gen. (Digenea: Cyclocoelidae) differs from Allopyge in having the testes situated some distance from the posterior extremity, 2(More)
Buticulotrema stenauchenus n. gen., n. sp. (Opecoelidae: Opecoelinae) is described from the macrourid fishes Malacocephalus occidentalis Goode and Bean, 1885, and Nezumia aequalis Günther, 1878, collected in June 1971 from the DeSoto Canyon area of the Gulf of Mexico at a depth of 495 m. Eight of 25 (32%) M. occidentalis and 1 of 8 (13%) N. aequalis(More)
Three keys to the species of Neolebouria Gibson, 1976, representing three body types, are provided based on the location of the genital pore relative to the intestinal bifurcation. These are: the lanceolata body type, where the genital pore is clearly prebifurcal; the diacopae body type, where the genital pore is located at or near the level of the(More)
Syncoelicotyloides zaniophori n. sp. (Monogenea: Microcotylidae) is described from the gills of the macrourid fish Coryphaenoides zaniophorus caught in the DeSoto Canyon area in the northeastern part of the Gulf of Mexico. This new species is differentiated from Syncoelicotyloides macruri Mamaev and Brashovjan, 1989 by its body size, number of testes,(More)
Bothriocephalus gadellus n. sp. is described from the intestine of the beardless codling Gadella imberbis (Gadiformes: Moridae) from the southwestern Gulf of Mexico. It resembles B. scorpii, the type-species of Bothriocephalus, and B. manubriformis, the only species of the genus reported from the Gulf of Mexico. B. gadellus n. sp. differs from both species(More)
DNA sequencing of the nuclear ribosomal DNA internal transcribed spacers (ITS) and mitochondrial rrnS and cox2 genes, and analysis of polymorphisms in restriction profiles in the ITS and rrnS, were used to characterise anisakid nematodes belonging to Contracaecum Railliet & Henry, 1912 infecting the brown pelican Pelecanus occidentalis (L.) in Galveston(More)
Ten (100%) lesser savanna cane rats, Thryonomys gregorianus, collected from the Lake Kivv area of the Democratic Republic of Congo, Africa were found to be infected with an undescribed anoplocephalid tapeworm, Thysanotaenia congolensis n. sp. Like other species of Thysanotaenia, T. congolensis n. sp. has the ovary and vitellarium centrally located, and the(More)