| parasites of native and nonnative fishes of the little colorado river, grand canyon, arizona. | a 2-yr, seasonal, parasitological study of 1,435 fish, belonging to 4 species of native fishes and 7 species of nonnative fishes from the lower little colorado river (lcr) and tributary creeks, grand canyon, arizona, yielded 17 species of parasites. these comprised 1 myxozoan (henneguya exilis), 2 copepods (ergasilus arthrosis and lernaea cyprinacea), 1 acarine (oribatida gen. sp.), 1 piscicolid leech (myzobdella lugubris), 4 monogeneans (gyrodactylus hoffmani, gyrodactylus sp., dactylogyrus ext ... | 2004 | 15562604 |
| phylogenetic analysis on genera of corallobothriinae (cestoda: proteocephalidea) from north american ictalurid fishes, using partial sequences of the 28s ribosomal gene. | partial sequences of the 28s rdna (ribosomal gene) were obtained from a total of 11 populations of 5 species (in 3 genera) of north american corallobothriine proteocephalideans. these included corallobothrium fimbriatum (3 populations), corallobothrium parafimbriatum (1 population), corallotaenia minutia (1 population), megathylacoides giganteum (2 populations), and megathylacoides lamothei (4 populations). these sequences were used in a phylogenetic analysis to test the monophyly of coralloboth ... | 2004 | 15562613 |