Lymnaea cousini Jousseaume, 1887 (Gastropoda: Lymnaeidae): first record for Venezuela

Pointier, J. P.; Noya, Óscar; Amarista, Manuel; Thèron, André

doi:10.1590/s0074-02762004000600005

Cited by 19 publications

(21 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This difficulty may explain why, until recently, only two species, L. cubensis and L. columella, have been reported in Venezuela (Lutz 1928, Briceño-Rossi 1950, Malek & Chrosciechowski 1964, Pino & Morales 1982, Morales & Pino 1992. However, the recent discovery of a third species, L. cousini at very high altitudes in the Venezuelan Andes, is perhaps linked to the scarcity of malacological data from this area rather than an identification problem, as this L. cousini has a shell quite distinct from the other species (Pointier et al 2004).…”

Section: Morphological Identification Of Lymnaeidsmentioning

confidence: 99%

“…Snails preserved in Railliet Henry's fluid were dissected under a stereoscopic microscope and drawings of the reproductive system were made using a camera lucida attachment. Snails were identified according to conchological and anatomical characteristics (Paraense 1976, 1982, 1984, 1995, Brown 1994, Pointier et al 2004, 2007.…”

mentioning

confidence: 99%

“…3). A second local lymnaeid species L. cousini was reported for the first time in 2003 in Mucubaji Lake, state of Mérida, at an altitude of 3,550 m (N8°47'51.8'' W70°49'32.4'') (Pointier et al 2004). Three years later in 2006 this species was discovered in a small ditch in the Paso el Condor area, Mérida, at an altitude of 4,040 m (N8°50'38.2'' W70°49'33.9'') ( Fig.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Distribution of Lymnaeidae (Mollusca: Pulmonata), intermediate snail hosts of Fasciola hepatica in Venezuela

Pointier

Noya

et al. 2009

Mem. Inst. Oswaldo Cruz

Self Cite

View full text Add to dashboard Cite

An extensive malacological survey was carried out between [2005][2006][2007][2008][2009] Fascioliasis is a parasitosis mainly infecting cattle, but it is now considered to be an emergent disease in humans in many countries over the world (Mas-Coma 2005). In the New World, it is considered as a serious health problem in several Andean countries. Bolivia is even described as a hyperendemic area and one of its epidemiological characteristics is its very high altitude at more than 4,000 m . The timing of the emergence of human foci in the Altiplano Region corresponds to the invasion by the European intermediate snail host Lymnaea truncatula (Jabbour-Zahab et al. 1997, Meunier et al. 2001. In Venezuela, human fascioliasis was first reported in 1910 and only eight sporadic cases were detected in the following decades (Risquez 1929, Rodríguez & González 1975, Abdul-Hadi et al. 1996, Scorza et al. 1999, Incani et al. 2002, Alarcón de Noya et al. 2006). However, in 2005 five children belonging to the same family were detected with fascioliasis in Timotes, in the Venezuelan Andes, at an altitude of 2,230 m (Alarcón de Noya et al. 2007). The same year a malacological survey carried out in the Timotes area found only a single lymnaeid species, the European L. truncatula. In this paper we present the results of an extensive malacological survey which was carried out A malacological survey was carried out between 2005-2009 across the whole country. A total of 298 sites were sampled (see the inserts in the maps showing all the sampling sites). Snails were sampled from different vegetation either by hand or sampled using a scoop mounted with a wooden handle, depending on the type of site. These sites include the following main habitat types: springs, ditches, brooks, canals, rivers, swamps, tanks, ponds and lakes. Following field collection lymnaeid snails were allowed to relax overnight using menthol. They were then immersed for 40 s in water at 70°C, from which they were transferred to water at RT. The soft parts were drawn from the shell with small forceps and fixed in slightly modified Railliet-Henry fluid (distilled water 930 mL, sodium chloride 6 g, formalin 50 mL, glacial acetic acid 20 mL). Shells were measured to the nearest 1 mm using callipers. Snails preserved in Railliet Henry's fluid were dissected under a stereoscopic microscope and drawings of the reproductive system were made using a camera lucida attachment. Snails were identified according to conchological and anatomical characteristics

show abstract

Section: Morphological Identification Of Lymnaeidsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Distribution of Lymnaeidae (Mollusca: Pulmonata), intermediate snail hosts of Fasciola hepatica in Venezuela

Pointier

Noya

et al. 2009

Mem. Inst. Oswaldo Cruz

Self Cite

View full text Add to dashboard Cite

show abstract

“…bogotensis Pilsbry, 1935;see Hubendick 1951 andPointier et al 2004). L. cousini has been found in Ecuador (Jousseaume 1887, Paraense 1995, Colombia (Piaget 1912, Pilsbry 1935, and Venezuela (Pointier at al. 2004), but no report concerning natural infection has ever been published.…”

mentioning

confidence: 95%

“…This region is inhabited by 23.6 and 52.9% of the total and rural population, respectively; almost 200,000 people are infected and 1% are at risk of infection (WHO 1995 Piaget, 1912;L. bogotensis Pilsbry, 1935;see Hubendick 1951 andPointier et al 2004). L. cousini has been found in Ecuador (Jousseaume 1887, Paraense 1995, Colombia (Piaget 1912, Pilsbry 1935, and Venezuela (Pointier at al.…”

mentioning

confidence: 99%

First report of Lymnaea cousini Jousseaume, 1887 naturally infected with Fasciola hepatica (Linnaeus, 1758) (Trematoda: Digenea) in Machachi, Ecuador

Villavicencio

Vasconcellos

2005

Mem. Inst. Oswaldo Cruz

View full text Add to dashboard Cite

Morphological and molecular characterization of Neotropic Lymnaeidae (Gastropoda: Lymnaeoidea), vectors of fasciolosis

Correa

Escobar

Noya

et al. 2011

Infection, Genetics and Evolution

117

View full text Add to dashboard Cite

Lymnaea cousini Jousseaume, 1887 (Gastropoda: Lymnaeidae): first record for Venezuela

Cited by 19 publications

References 4 publications

Distribution of Lymnaeidae (Mollusca: Pulmonata), intermediate snail hosts of Fasciola hepatica in Venezuela

Distribution of Lymnaeidae (Mollusca: Pulmonata), intermediate snail hosts of Fasciola hepatica in Venezuela

First report of Lymnaea cousini Jousseaume, 1887 naturally infected with Fasciola hepatica (Linnaeus, 1758) (Trematoda: Digenea) in Machachi, Ecuador

Morphological and molecular characterization of Neotropic Lymnaeidae (Gastropoda: Lymnaeoidea), vectors of fasciolosis

Contact Info

Product

Resources

About