| two new species of litobothrium dailey, 1969 (cestoda: litobothriidea) from thresher sharks in the gulf of california, mexico, with redescriptions of two species in the genus. | as part of a survey of the metazoan parasites of elasmobranchs of the gulf of california, mexico, the spiral intestines of 10 pelagic thresher sharks alopias pelagicus and one bigeye thresher shark a. superciliosus were examined for tapeworms. eight of the a. pelagicus specimens examined were found to host litobothrium amplifica and l. daileyi. both tapeworm species are redescribed based on examination of this new material with light and scanning electron microscopy, and the ranges of most of th ... | 2001 | 11302614 |