One of the mysteries of the English language finally explained.
Relating to a group of flukes which are internal parasites needing two to four hosts to complete their life cycle.Compare with monogenean
- ‘We have recently reported a study of the digenean intestinal parasites of 956 eels captured in the estuarine bays of Arousa and Ferrol in the northwest Iberian Peninsula.’
- ‘Nevertheless, the snail and digenean phylogenies do not appear congruent, implying that host switching occurs on evolutionary but not ecological timescales.’
- ‘These results indicate that only seventeen out of the 150 or so digenean families are reported in the deep sea.’
- ‘The present study demonstrates that digenean parasites induce population structure changes and shorten lifespan of mudsnails, through increasing size-dependent mortality.’
- ‘It will be a major source of information in digenean taxonomy for the next several decades.’
A digenean fluke; a trematode.
Subclass Digenea, class Trematoda
- ‘Occasionally the eggs of some digeneans may also bear filaments, although these are more generally oval in shape, and brown in colour due to quinone-tanning of egg shell components.’
- ‘Since only nonovigerous metacercariae were found in the molluscan host, the life cycle in Kuwait Bay conforms with the pattern in tropical waters, where the digenean reaches maturity in fishes.’
- ‘In Chile, there are no records of these digeneans in any group of hosts.’
- ‘This project is also linked with heavy metal toxicity studies, being carried out in our laboratory on the survival and infectivity of larval digeneans parasitising molluscan intermediate hosts.’
- ‘Fifteen species of digeneans are reported from the waters off the islands of the Outer Hebrides, off north-western Scotland.’
1960s: from modern Latin Digenea (from Greek di- ‘twice’ + genea ‘generation, race’) + -an.
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