Results 161 to 170 of about 31,941 (201)
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Fixed phagocytes in the freshwater snail Lymnaea stagnalis
Cell and Tissue Research, 1979Morphological 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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The Inheritance of Albinism in a Freshwater Snail, Physa heterostropha
Journal of Heredity, 1992Complementation tests revealed that albinism in four laboratory strains of Physa (Physella) heterostropha pomilia resulted from two recessive, nonallelic genes. F2 dihybrid progeny displayed the 9:7 ratio classically associated with reciprocal recessive epistasis between unlinked loci.
R T, Dillon, A R, Wethington
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The Land and Freshwater Snails of Campeche
Bulletin of the Florida Museum of Natural History, 1967This review of the land and freshwater snails of Campeche, Mexico, records 59 species and subspecies of snails including 47 terrestrial and 12 acquatic forms; 21 are recorded for the first time from the state. Miradiscops haplocochlion is described as new; 11 previously recognized taxa are placed in synonymy.
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On the underwater weights of freshwater snails
Zeitschrift f�r Vergleichende Physiologie, 19631. Under laboratory conditions, the mantle cavities of Lymnaea stagnalis and Planorbarius corneus immediately after ventilation at the surface, contain enough air to make the animals buoyant. 2. Both species lose this buoyancy over the first three hours of submersion by a process reducing the gas volume. 3. The gas is used as
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Bioconcentration ratio of diazinon by freshwater fish and snail
Bulletin of Environmental Contamination and Toxicology, 1978The bioconcentration ratios of diazinon from water by freshwater fishes were generally larger than that of crayfish and snails. Among fishes, the bioconcentration ratio of diazinon by topmouth gudgeon was the highest value, 152 being average. However, elimination of diazinon from fish body was linearly rapid.
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The Freshwater Snails Of Taiwan (formosa).
1970PhD ; Zoology ; University of Michigan, Horace H. Rackham School of Graduate Studies ; http://deepblue.lib.umich.edu/bitstream/2027.42/188611/2/7021747 ...
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The chemosensory spectrum of freshwater snails
1996In this paper we review the present information on the chemosensory spectrum of freshwater snails with particular reference to our study on Planorbarius. By comparing our results with other data from literature, it is evident that different species have different chemosensory spectra as a function of their ecological adaptation.
D. Sonetti +3 more
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Habituation in a freshwater snail (Limnaea stagnalis)
Animal Behaviour, 1971Abstract Withdrawal responses were elicited by mechanical or visual stimuli and recorded both automatically and by observation. With stimulus repetition both response amplitude and frequency decline but the latency remains about the same: these effects are short lived.
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Species Diversity, Distribution, and Abundance of Freshwater Snails in KwaZulu-Natal, South Africa
Water (Switzerland), 2022Onyekachi Esther Nwoko +2 more
exaly
The Freshwater Snails of Taiwan (Formosa)
Transactions of the American Microscopical Society, 1974John O. Corliss, Gary L. Pace
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