Dugesia Tigrina: Habitat, Structure and Locomotion - Biology …
Dugesia tigrina exists in asexual and sexual strains. The asexual form has no reproductive organs, it reproduces by fission. Fission occurs when the animal has attained maximum size; the posterior end adheres firmly, while the anterior region advances forward so that the animal ruptures into two behind the pharynx.
Dugesia tigrina - ADW
Dugesia tigrina is considered one of the most primitive animal forms known to possess a central nervous system for higher order perception and integration. These flatworms are equipped with two eyespots called ocelli that appear as dark pigment cups on the anterior dorsal surface.
Structure of Planaria (Dugesia) (With Diagram) | Zoology
In this article we will discuss about the structure of Planaria (Dugesia) with the help of a diagram. 1. Commonly called planaria and is a fresh water form of cosmopolitan distribution. 2. The body is elongated, flattened and some-what conical.
(PDF) A new species of Dugesia (Platyhelminthes ... - ResearchGate
2020年6月26日 · By means of an integrated approach, including molecular, morphological, anatomical and histological data, we describe a new species of freshwater flatworm of the genus Dugesia from southwest...
Dugesia - Wikipedia
Dugesia is the type genus of the family Dugesiidae. Dugesia species have an elongated body with a slightly triangle-shaped head. Usually they have grey, brown or black colors on the dorsal body surface, the ventral surface uses to be paler.
Anatomical structure of Dugesia japonica (after Katô
They are small to medium-sized in body length (8-15mm). The body is flat with a convex dorsal side. The head has an obtuse-angled triangular form with a bluntly-pointed auricle on each side...
Diagram summarizing the basic structure and morphology of an …
To obtain specific immunological probes for studying molecular mechanisms involved in cell renewal, cell differentiation, and pattern formation in intact and regenerating planarians, we have...
Integrative description of a new species of Dugesia …
2024年2月8日 · The new species Dugesia saccaria A-T. Wang & Sluys, sp. nov. is characterized by the following features: a dumb-bell-shaped, muscularized hump located just anterior to the knee-shaped bend in the bursal canal; a ventrally displaced ejaculatory duct, which, however, opens terminally through the dorsal portion of the blunt tip of the penis ...
Dugesia - an overview | ScienceDirect Topics
The only nonparasitic representatives are within the Turbellaria, best represented by the genus Dugesia, and are often considered widespread among tropical streams and rivers of the world. Many times flatworms are lumped into the ‘Other’ category of …
Whole-genome sequence of the planarian Dugesia japonica …
2022年3月1日 · Here, we combined single-molecule real-time DNA sequencing platform Pacific Biosciences (PacBio) sequencing, Illumina paired-end sequencing and 10× Genomics linked reads data to obtain the whole-genome sequence of the planarian D. japonica. The final assembled D. japonica genome is 1.13G with contig N50 …