Variações anatômicas em Lymnaea columella (Mollusca, Gastropoda)
نویسندگان
چکیده
منابع مشابه
Geographical distribution and habitat preferences of the invader freshwater snail species Lymnaea columella (Mollusca: Gastropoda) in South Africa.
The present geographical distribution of Lymnaea columella, as recorded in the National Freshwater Snail Collection, is described and discussed. It appears that L. columella is the most successful colonist of all the freshwater snail species in South Africa, and, together with Bulinus tropicus and Lymnaea natalensis, it forms the most widely distributed freshwater snail species in the region. D...
متن کاملCharacterization of 15 microsatellite loci in the pulmonate snail Pseudosuccinea columella (Mollusca, Gastropoda).
We characterized 15 new variable microsatellites in the freshwater snail Pseudosuccinea (Lymnaea) columella, as well as conditions for multiplexing and simultaneously genotyping sets of loci. Two to six alleles were detected per locus over the six populations studied. Gene diversity ranged from 0.000 to 0.498, but essentially no heterozygous individuals were observed. This resulted in extremely...
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Molluscs have played important role in strengthening our knowledge of fundamental processes in developmental biology, with the common pond snail Lymnaea stagnalis contributing greatly to this body of literature for nearly a century (Gatenby, 1919; Sturtevant, 1923; Canton and Sloof, 1977). The morphological, morphometric and behavioral aspects of development of L. stagnalis have been well docum...
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The mantle is an important molluscan organ. It serves as a respiratory organ in most of the pulmonates; its walls have a dense vascular network. It is an outer jacket of the visceral mass and harbors the pulmonary chamber on its right side. Mantle is the specialized organ of the gastropods for it not only bears the glands that secrete the shell but also acts as buffer between the hard calcareou...
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Caenogastropoda is the dominant group of marine gastropods in terms of species numbers, diversity of habit and habitat and ecological importance. This paper reports the first comprehensive multi-gene phylogenetic study of the group. Data were collected from up to six genes comprising parts of 18S rRNA, 28S rRNA (five segments), 12S rRNA, cytochrome c oxidase subunit I, histone H3 and elongation...
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ژورنال
عنوان ژورنال: Revista da Sociedade Brasileira de Medicina Tropical
سال: 1977
ISSN: 0037-8682
DOI: 10.1590/s0037-86821977000600004