Girardia tigrina | |
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Scientific classification
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Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Platyhelminthes |
Order: | Tricladida |
Family: | Dugesiidae |
Genus: | Girardia |
Species: | G. tigrina
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Binomial name | |
Girardia tigrina (
Girard, 1850)
| |
Synonyms | |
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Girardia tigrina, known as the brown planarian or the immigrant triclad flatworm, is a species of dugesiid native to the Americas. [1] It has been accidentally introduced into Europe [2] and Japan. [3]
G. tigrina individuals are around 10 mm in length. They have a head with two broad and short auricles. The two eyes are in two pigment-free patches. The dorsal surface of the body has numerous pigment spots. [3]
Originally from the Americas, Girardia tigrina has become an invasive species in Europe and Japan. Since being first recorded in France in 1925, [4] this species has been reported from many other European countries, including Germany, [5] [6] Italy, [7] the Netherlands, [8] Romania, [9] and Wales. [10]
In North Wales, this species has displaced the native triclad species Polycelis nigra and Polycelis tenuis due to its superior exploitation of food. [2]
G. tigrina is a carnivorous species that feeds on invertebrates such as oligochaetes, isopods, chironomids, snails, caddisflies, and mayflies. [2]
The haploid number is n=8. There are diploid (2n=16) and triploid (3n=24) specimens. [3]
Girardia tigrina | |
---|---|
![]() | |
Scientific classification
![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Platyhelminthes |
Order: | Tricladida |
Family: | Dugesiidae |
Genus: | Girardia |
Species: | G. tigrina
|
Binomial name | |
Girardia tigrina (
Girard, 1850)
| |
Synonyms | |
|
Girardia tigrina, known as the brown planarian or the immigrant triclad flatworm, is a species of dugesiid native to the Americas. [1] It has been accidentally introduced into Europe [2] and Japan. [3]
G. tigrina individuals are around 10 mm in length. They have a head with two broad and short auricles. The two eyes are in two pigment-free patches. The dorsal surface of the body has numerous pigment spots. [3]
Originally from the Americas, Girardia tigrina has become an invasive species in Europe and Japan. Since being first recorded in France in 1925, [4] this species has been reported from many other European countries, including Germany, [5] [6] Italy, [7] the Netherlands, [8] Romania, [9] and Wales. [10]
In North Wales, this species has displaced the native triclad species Polycelis nigra and Polycelis tenuis due to its superior exploitation of food. [2]
G. tigrina is a carnivorous species that feeds on invertebrates such as oligochaetes, isopods, chironomids, snails, caddisflies, and mayflies. [2]
The haploid number is n=8. There are diploid (2n=16) and triploid (3n=24) specimens. [3]