Results 81 to 90 of about 178 (111)
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Redescription of the duck leech, Theromyzon rude (Baird, 1869) (Rhynchobdellida: Glossiphoniidae)
Canadian Journal of Zoology, 1992The identification of the species of Theromyzon in North America and worldwide is based on the number of annuli separating the male and female gonopores. The first species identified from North America (Glossiphonia rudis) was not fully described but, based on the collection of a specimen from the same site, T.
J. H. Oosthuizen, Ronald W. Davies
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Turkiye Parazitolojii Dergisi, 2011 An ectoparasite leech Piscicola geometra were found on female roach (Rutilus rutilus) between the anus and lateral line during the biometric measurements for the purpose of monitoring the fish population in Uluabat Lake. P. geometra was previously reported on Carassius gibelio and Tinca tinca from Lake Uluabat.
Mustafa Çeylan, Yunus Ömer Boyaci
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Parasitology Research, 2020
A new snail-eating leech, Batracobdelloides bangkhenensis sp. n., was discovered at Kasetsart University, Bangkhen Campus, Bangkok, Thailand. This species is found free living in the benthic zone of ponds; feeds on freshwater snails, including Bithynia siamensis siamensis, Indoplanorbis exustus, Radix rubiginosa, Physella acuta, and Pomacea ...
Krittiya Chiangkul +2 more
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A new snail-eating leech, Batracobdelloides bangkhenensis sp. n., was discovered at Kasetsart University, Bangkhen Campus, Bangkok, Thailand. This species is found free living in the benthic zone of ponds; feeds on freshwater snails, including Bithynia siamensis siamensis, Indoplanorbis exustus, Radix rubiginosa, Physella acuta, and Pomacea ...
Krittiya Chiangkul +2 more
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Journal of Morphology, 2005
Oogenesis in the glossiphoniid leech Glossiphonia heteroclita (Hirudinea, Rhynchobdellida) is nutrimental, i.e., the growing oocyte is supported by specialized germline cells, the nurse cells. The main function of the nurse cells is to provide oocytes with cell organelles and RNAs (mainly rRNA).
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Oogenesis in the glossiphoniid leech Glossiphonia heteroclita (Hirudinea, Rhynchobdellida) is nutrimental, i.e., the growing oocyte is supported by specialized germline cells, the nurse cells. The main function of the nurse cells is to provide oocytes with cell organelles and RNAs (mainly rRNA).
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Canadian Journal of Zoology, 1993
A new species of duck leech, Theromyzon bifarium, is described which, like T. rude and T. maculosum, has the gonopores separated by two annuli. Theromyzon bifarium is distinguished by the presence of a cylindrical male atrium, paired dorsolateral male ducts which enter the atrium separately, and a posteriorly directed loop formed by the long common ...
J. H. Oosthuize, Ronald W. Davies
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A new species of duck leech, Theromyzon bifarium, is described which, like T. rude and T. maculosum, has the gonopores separated by two annuli. Theromyzon bifarium is distinguished by the presence of a cylindrical male atrium, paired dorsolateral male ducts which enter the atrium separately, and a posteriorly directed loop formed by the long common ...
J. H. Oosthuize, Ronald W. Davies
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Comparative Parasitology, 2011
One of 4 (25%) white crappie, Pomoxis annularis, specimens from the Ouachita River, Dallas County, Arkansas, was found to be infested with 8 glossiphoniid leeches, Actinobdella inequiannulata Moore, 1901. Leeches were removed from within the operculum on gills and gill arches.
Chris Thomas Mcallister, William Moser
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One of 4 (25%) white crappie, Pomoxis annularis, specimens from the Ouachita River, Dallas County, Arkansas, was found to be infested with 8 glossiphoniid leeches, Actinobdella inequiannulata Moore, 1901. Leeches were removed from within the operculum on gills and gill arches.
Chris Thomas Mcallister, William Moser
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Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1990
Abstract 1. Each salivary gland cell of Oosthuizobdella extends a single process (ductule) anteriorly into the proboscis. Secretion occurs at the ductule ending. 2. The cells produce calcium-dependent action potentials, accompanied by secretion, in response to stimulation of the stomatogastric nerve or to addition of 5-hydroxytryptamine (10 −4 M),
Ward F. Cooper, Michael S. Berry
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Abstract 1. Each salivary gland cell of Oosthuizobdella extends a single process (ductule) anteriorly into the proboscis. Secretion occurs at the ductule ending. 2. The cells produce calcium-dependent action potentials, accompanied by secretion, in response to stimulation of the stomatogastric nerve or to addition of 5-hydroxytryptamine (10 −4 M),
Ward F. Cooper, Michael S. Berry
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Journal of Morphology, 1995
AbstractMorphological and ultrastructural features of the salivary glands and proboscises of Placobdella ornata, Placobdella parasitica, and Desserobdella picta were studied by light and electron microscopy. Chemical composition of the salivary cells was investigated using a variety of histochemical techniques. Placobdella ornata and P. parasitica have
W E, Moser, S S, Desser
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AbstractMorphological and ultrastructural features of the salivary glands and proboscises of Placobdella ornata, Placobdella parasitica, and Desserobdella picta were studied by light and electron microscopy. Chemical composition of the salivary cells was investigated using a variety of histochemical techniques. Placobdella ornata and P. parasitica have
W E, Moser, S S, Desser
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Journal of Parasitology, 2016
One of the recalcitrant questions regarding the evolutionary history of clitellate annelids involves the feeding preference of the common ancestor of extant rhynchobdellid (proboscis bearing) and arhynchobdellid (jaw bearing) leeches. Whereas early evidence, based on morphological data, pointed towards independent acquisitions of blood feeding in the 2
Mark E, Siddall +2 more
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One of the recalcitrant questions regarding the evolutionary history of clitellate annelids involves the feeding preference of the common ancestor of extant rhynchobdellid (proboscis bearing) and arhynchobdellid (jaw bearing) leeches. Whereas early evidence, based on morphological data, pointed towards independent acquisitions of blood feeding in the 2
Mark E, Siddall +2 more
openaire +2 more sources