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Haemoglobin producing cells in freshwater snails

Zeitschrift f�r Zellforschung und Mikroskopische Anatomie, 1972
One of the cell types occurring in the connective tissue of gastropods and bivalves is thepore cell. Cells of this type have a characteristic morphology in that their plasmamembrane has many invaginations bridged by cytoplasmic tongues. In the well developed granular endoplasmic reticulum and in these invaginations fine granular material, sometimes ...
T, Sminia   +2 more
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Population genetics of freshwater snails

Trends in Ecology & Evolution, 1991
Freshwater snails have attracted the attention of biologists for a long time, because they are intermediate hosts of schistosomes, agents of bilharziases. However, population-genetic studies of freshwater snails have been undertaken only during the past decade, covering topics such as the relative roles of genetic drift and gene flow in subdivided ...
P, Jarne, B, Delay
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Freshwater Snails Of Anwai River

2019
The Nigerian Field, 70 (1), 51 ...
Okonta, A A, Ogunbor, A O
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Fixed phagocytes in the freshwater snail Lymnaea stagnalis

Cell and Tissue Research, 1979
Morphological and histochemical examination of the blood and connective tissue of the freshwater snail Lymnaea stagnalis injected with various types of foreign particulate materials has shown the existence of free as well as fixed phagocytic cells. The morphology of the fixed phagocytes is described, and the phagocytic system of the snail is compared ...
T, Sminia   +2 more
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Freshwater snails in brackish water

1929
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Chromosomes of Gyraulus circumstratius, a Freshwater Snail

Nature, 1960
POLYPLOIDY is relatively scarce in the animal kingdom, and is apparently almost entirely confined to those species in which reproduction is partheno-genetic, hermaphroditic or clonal1. Such animals usually do not have a heterogametous sex-determining mechanism to be disturbed by polyploidy.
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Freshwater snails of Oman, South Eastern Arabia

Hydrobiologia, 1985
A systematic account is given of the extant freshwater snail fauna of Oman, based on recent collections made in Dhofar and in the northern mountainous areas. Also included are certain species found in brackish coastal localities. A total of 8 freshwater species is regarded as belonging to the fauna of normal freshwater; 7 have been found alive (Thiara ...
D. S. Brown, M. D. Gallagher
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A new Celebes Freshwater Snail (Hydrobiinae)

1945
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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