Dugesia tigrina is a triclad turbellarian found across North America. Human activities have extended the range of D. tigrina to parts of northwestern Europe and eastern Asia, with notable population densities in Great Britain and Japan.

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]

1. Habit and Habitat of Dugesia Tigrina: Dugesia tigrina is gregarious (lives in groups) found on the underside of leaves, logs, debris and rocks submerged in cool, clear and running water of streams, ponds and lakes.

Dugesia (/duˈd͡ʒiʒ(i)ə/ [citation needed]) is a genus of dugesiid triclads that contains some common representatives of the class Turbellaria. These common flatworms are found in freshwater habitats of Africa, Eurasia, and Australia.

Dugesia tigrina is a free-living flatworm found across North America. Humans have brought these flatworms overseas into northwestern Europe and eastern Asia, with significant populations in Great Britain and Japan.

Girardia tigrina. Girardia tigrina is a species of freshwater planarian or flatworm native to North America. It is also known as Dugesia tigrina or commonly the brown planaria. As of 2021 it was regarded as an invasive species in ten countries or islands, although it was not recorded as having an impact on people or the environment.

Abstract. The triclad flatworm Dugesia tigrina (Girard) is abundant in Lake Wabamun, a west-central Alberta lake receiving thermal effluent. A 14-month study was carried out to investigate D. tigrina's population ecology and the effect a thermally …

The Epidermis and Sensory Organs of Dugesia tigrina (Turbellaria: Tricladida) A Scanning Electron Microscope Study* Lesley R. Smales and Harvey D. Blankespoor Museum of Zoology, University of Michigan, Ann Arbor, Michigan, USA Summary. The epidermis ofD. tigrina was examined using the scanning electron microscope.

Sep 23, 2024 · Dugesia (pronounced, d(y)jzh()) is a genus of dugesiid triclad that contains some common representatives of the class Turbellaria. These common flatworms are found in freshwater habitats of Africa, Europe, Middle East, Asia and Australia.

Freshwater Planarian (dugesia Tigrina): Species Accounts Physical characteristics: The body of the freshwater planarian is lance shaped with ear-shaped structures on each side of the head. These worms are light to dark brown, and some forms have a stripe down the center of the back.