New data about the functional morphology of the chaetiferous leech-like annelidsAcanthobdella peledina(Grube, 1851) andParacanthobdella livanowi(Epshtein, 1966) (Clitellata, Acanthobdellida)

Autor:	Iwona Jeleń, Joanna M. Cichocka, Piotr Świątek, Aleksander Bielecki, Bartosz J. Płachno, Dorota Pikuła
Rok vydání:	2013
Předmět:	biology Ecology Clitellata Leech Zoology biology.organism_classification Taxon Acanthobdellida Functional morphology Fish Animal Science and Zoology Reproductive system Acanthobdella peledina Developmental Biology
Zdroj:	Journal of Morphology.
ISSN:	0362-2525
DOI:	10.1002/jmor.20235
Popis:	Approximately 130 individuals of Acanthob- della peledina and 100 individuals of Paracanthobdella livanowi were studied. Morphometric measurements were taken to explore the body form. The digestive and the reproductive systems of leech-like annelids were analyzed for the first time in such a high number of specimens. Observation of A. peledina and P. livanowi revealed crucial differences in the reproductive system of the analyzed taxa, mostly regarding variation in the shape of the testi- sacs and the length of the ovisacs. The results of a diges- tive system analysis suggest that blood-sucking parasites of the order Acanthobdellida may also lead a predatory lifestyle. The presented findings support the taxonomic division of the order Acanthobdellida into the families Acanthobdellidae and Paracanthobdellidae. Multiple simi- larities between Acanthobdellida and Hirudinida were also discussed. J. Morphol. 000:000-000, 2013. V C 2013 Wiley Periodicals, Inc.
Databáze:	OpenAIRE
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