Biomphalaria straminea
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| Biomphalaria straminea | |
|---|---|
_-_Planorbidae_-_Mollusc_shell.jpeg) | |
| Shells of Biomphalaria straminea | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Superorder: | Hygrophila |
| Family: | Planorbidae |
| Genus: | Biomphalaria |
| Species: | B. straminea |
| Binomial name | |
| Biomphalaria straminea (Dunker, 1848) | |
| Synonyms | |
|
Planorbis stramineus | |
Biomphalaria straminea is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails.
This snail is a medically important pest,[1] because an intermediate host for the parasite Schistosoma mansoni and a vector of schistosomiasis.[2]
The history of these discoveries was summarized by Paraense (2001).[3]
The shell of this species, like all planorbids is sinistral in coiling, but is carried upside down and thus appears to be dextral.
Biomphalaria glabrata is a Neotropical[1] species. It occurs in:
- Caribbean: Saint Lucia – reported since 1993[4]
- northeast of Brazil
This species has recently expanded its native range.[1] As an introduced species, it occurs in:
- Hong Kong and Southern China - firstly collected in 1973[5] in the Lam Tsuen valley in Hong Kong, in has now been identified at a number of locations in Hong Kong and Guangdong Province.[6]
Phylogeny
To allow comparisons with other mollusc genomes, a high-quality genome assembly for B. straminea together with accompanying transcriptomes has been sequenced, producing a 1.005 Gb in size reference genome consisting of 36 chromosomes.[7]
A cladogram showing phylogenic relations of species in the genus Biomphalaria:[8]
| Biomphalaria |
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