| revision of the amphiamerican neotetraonchus bravo-hollis, 1968 (monogenoidea: dactylogyridae), with a description of n. vegrandis n. sp. from the gill lamellae of the blue sea catfish ariopsis guatemalensis (siluriformes: ariidae) off the pacific coast of mexico. | neotetraonchus bravo-hollis, 1968 is revised and reassigned to the dactylogyridae bychowsky, 1933 based on examinations of specimens representing four species from the gill lamellae of sea catfishes (ariidae). the monotypic neotetraonchidae bravo-hollis, 1968 is placed in synonymy with the dactylogyridae. neotetraonchus bychowskyi bravo-hollis, 1968 (type-species), is redescribed from the tete sea catfish ariopsis seemanni (günther) (type-host) in the eastern pacific ocean off panama (new geogra ... | 2009 | 19633926 |
| ecotoxicological effects of pops on ariidae ariopsis felis (linnaeus, 1766) from three coastal ecosystems in the southern gulf of mexico and yucatan peninsula. | persistent organic pollutants (pops) are still used for agricultural and disease vector control, as well as for industrial purposes. in the last decades, various studies have shown that fish are sensitive to the toxicological effects of certain pops, including a large class of endocrine- disrupting chemicals (edcs). in the present study, the relationship between of pops and their effects using vitellogenin gene expression as biomarker of effect in hardhead catfish ariopsis felis (linnaeus, 1766) ... | 2007 | 17680493 |
| pseudocapillaria yucatanensis sp. n. (nematoda: capillariidae) from the bagre rhamdia guatemalensis (pisces) from cenotes in yucatan, mexico. | a new nematode species, pseudocapillaria yucatanensis sp. n., is described from the intestine of the freshwater pimelodid catfish rhamdia guatemalensis (günther) from cenotes (= sinkholes) in yucatan, mexico. it differs from other three related species parasitizing freshwater fishes mainly in possessing the spicule with a simple rim of its proximal end and a non-expanded distal end, in the length of the spicule (0.218-0.295 mm), and the size (0.050-0.060 x 0.025-0.030 mm), shape and structure of ... | 1995 | 9599428 |
| bothriocephalus pearsei n. sp. (cestoda: pseudophyllidea) from cenote fishes of the yucatan peninsula, mexico. | the cestode bothriocephalus pearsei n. sp. is described from the intestine of the cichlid cichlasoma urophthalmus (günther) from cenote (= sinkhole) zaci near valladolid, yucatan, mexico. the pimelodid catfish rhamdia guatemalensis günther, which also harbored conspecific cestodes, seems to represent accidental or postcyclic host of b. pearsei. the new species differs from congeners mainly by the morphology of the scolex, which is clavate, with the maximum width in its middle part, has a distinc ... | 1996 | 8885891 |