In the course of several trips to Peru I had the opportunity of collecting topotypic specimens of Biomphalaria andecola (Orbigny, 1835), B. helophila (Orbigny, 1835), B. pucaraensis (Preston, 1909), Drepanotrema limayanum (Lesson, 1830), D. kermatoides (Orbigny, 1835), and Lymnaea viatrix Orbigny, 1835, besides B. tenagophila (Orbigny, 1835), Helisoma trivolvis (Say, 1817), H. duryi (Wetherby, ...

many species of the freshwater pulmonate snail family lymnaeidae act as intermediate hosts in the transmission of digenean trematode larvae, including those of the causative agent of fasciolosis. based on this, current investigation was aimed to determine diversity and geographical distribution of lymnaeidae snails and role of biochemical indices in habitat of them in west azerbaijan province, ...

IVAN BOLOTOV , YULIA BESPALAYA, OLGA AKSENOVA, ANDREY AKSENOV , NIKITA BOLOTOV , MIKHAIL GOFAROV , ALEXANDER KONDAKOV, INGA PALTSER & ILYA VIKHREV 1Institute of Ecological Problems of the North, the Ural Branch of Russian Academy of Sciences, Severnaya Dvina Emb. 23, 163000 Arkhangelsk, Russian Federation 2Northern (Arctic) Federal University, Severnaya Dvina Emb. 17, 163002 Arkhangelsk, Russia...

Snails of the family Lymnaeidae act as intermediate hosts in the biological cycle of Fasciola hepatica, which is a biological agent of fasciolosis, a parasitic disease of medical importance for humans and animals. The present work aimed to update and map the spatial distribution of the intermediate host snails of F. hepatica in Brazil. Data on the distribution of lymnaeids species were compiled...

We examined the patelliform snails of the subfamily Lancinae, endemic to northwestern North America, to test whether morphological variation correlated with genetic and anatomical differences. Molecular analyses using cox1, 16S, calmodulin intron, and 28S rDNA partial sequences and anatomical data supported recognition of four species in three genera. The relationships of lancines within Lymnae...

This paper presents the spatial and temporal variation in diversity of malacofauna relation to water chemistry Aripal stream Kashmir Himalaya. A total 12 species were reported which belong four families, Lymnaeidae, Physidae, Planorbidae, Bithyniidae from class Gastropoda, two Cyrenidae Pisidiidae Bivalvia. The family Planorbidae contributed 34% annual molluscan population followed by Lymnaeida...

background: the present study was carried out to detect the infection of larval stages of trichobilharzia species in the snail lymnaea auricularia in northwestern iran based on dna analysis. methods: a total number of 320 snails of l. auricularia were sampled from four water-bodies located in the suburb of urmia city, north west iran, during may to november 2011. the snails were first microscop...

Wuliangsuhai Lake provides important breeding and stopover habitats for shorebirds. The health of this wetland ecosystem is rapidly deteriorating due to eutrophication and water pollution and environmental management is urgently needed. To explore the connections among ecosystem health, prey density, and shorebird populations, we conducted surveys of both the benthic macroinvertebrates and shor...

In the course of a trip to Ecuador I had the opportunity of collecting topotypic specimens of the following nominal species of pulmonate molluscs: Biomphalaria cousini Paraense, 1966; Planorbis equatorius Cousin, 1887; P. canonicus Cousin, 1887; Lymnaea cousini Jousseaume, 1887 and P. boetzkesi Miller, 1879. Additional findings were: Helisoma trivolvis (Say, 1817), Biomphalaria peregrina (Orbig...

The lymneid snail Lymnaea bogotensis Pilsbry 1935 is synonymized with L. cousini Jousseaume 1887, based on morphological comparisons of the reproductive systems. The shell, renal tube, and reproductive system are described and illustrated from specimens collected in the type locality and the municipality of Paipa, Colombia. Bibliographical records reveal L. columella to be the commonest lymneid...