Results 151 to 160 of about 1,053 (183)

Diversity and selective pressures of anticoagulants in three medicinal leeches (Hirudinida: Hirudinidae, Macrobdellidae) [PDF]

open access: yesEcology and Evolution, 2013
AbstractAlthough medicinal leeches have long been used as treatment for various ailments because of their potent anticoagulation factors, neither the full diversity of salivary components that inhibit coagulation, nor the evolutionary selection acting on them has been thoroughly investigated.
Sebastian Kvist, Mark E Siddall
exaly   +3 more sources
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Comparison of body wall histologic structure of two medicinal leeches Hirudo sulukii and Hirudo verbana (Hirudinida: Hirudinidae)

Cell and Tissue Research, 2021
In this study, it was aimed to determine secretory cell types using histochemical properties of secretory cells and epidermis histology in the body wall of two medicinal leech species, Hirudo verbana and Hirudo sulukii. In addition, areas of epidermis epithelial cells, secretory cell types, and secretion areas of secretory cells stained with ...
Müge Uncu Gül, Özlem Çakıcı
openaire   +2 more sources

Arhynchobdellida (Annelida: Oligochaeta: Hirudinida): phylogenetic relationships and evolution

Molecular Phylogenetics and Evolution, 2004
A remarkable diversity of life history strategies, geographic distributions, and morphological characters provide a rich substrate for investigating the evolutionary relationships of arhynchobdellid leeches. The phylogenetic relationships, using parsimony analysis, of the order Arhynchobdellida were investigated using nuclear 18S and 28S rDNA ...
Elizabeth Borda, Mark E Siddall
exaly   +3 more sources

TWO NEW SPECIES OF AUSTROBDELLA (HIRUDINIDA: PISCICOLIDAE) FROM CHILE

Journal of Parasitology, 2007
Austrobdella coliumicus n. sp. is described from Coliumo Bay, Chile. It is characterized by a continuous, external coelomic canal (= marginal lacuna), 5 pairs of testisacs, accessory gland cells, a body not distinctly divided into trachelosome and urosome, 2 pairs of dorsal ocelli on the trachelosome, dorsal and ventral segmental ocelli present on the ...
Julianne I, Williams   +2 more
openaire   +2 more sources

A new species of Helobdella (Hirudinida: Glossiphoniidae) from Oregon, USA

Zootaxa, 2013
Helobdella bowermani n. sp. is described from specimens collected in fine sediment of open water benthos of Upper Klamath Lake, Klamath County, Oregon. The new species has pale yellow/buff coloration with scattered chromatophore blotches throughout the dorsal surface, lateral extensions or papillae only on the a2 annulus, dorsal medial row of papillae ...
William E, Moser   +6 more
openaire   +2 more sources

Distribution ofPlacobdella ornata(Verrill, 1872) (Hirudinida: Glossiphoniidae)

Bulletin of the Peabody Museum of Natural History, 2016
Abstract The distribution of Placobdella ornata (Verrill, 1872) is unclear as there has been much taxonomic confusion regarding this species. New collections and redetermination of museum specimens revealed 24 new locality records for Placobdella ornata, including the first reports of the species in New York and Rhode Island.
Moser, William E.   +2 more
openaire   +2 more sources

Phylogeny of the leech family Erpobdellidae (Hirudinida : Oligochaeta)

Invertebrate Taxonomy, 2002
The phylogenetic relationships of the family Erpobdellidae, a group of non-sanguivorous leeches useful as bioindicators, were investigated with the combined use of morphological characters, mitochondrial cytochrome c oxidase subunit I, mitochondrial 12S rDNA and nuclear 18S rDNA.
openaire   +1 more source

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