Tatria biremis Kowalewski, 1904, Ukraine.
OTHER COMMON NAMES None known.
Body 0.08-0.16 in (2-4 mm) long and 0.02-0.03 in (0.6-0.8 mm) wide. Strobila consists of 20-30 proglottides. Rostellum, bearing 10 hooks, can protrude very much in order to penetrate deeply into the intestine wall.
DISTRIBUTION Eurasia and North America.
Parasite of grebes, mostly of Podiceps auritus, P. nigricollis, and P. grisegena. Larvae recorded in aquatic insects. The macrohabitats include freshwater lakes and slow rivers.
FEEDING ECOLOGY AND DIET
Internal parasite absorbing nutrients through the tegument.
BEHAVIOR Nothing is known.
Tatria biremis is hermaphroditic. Gravid proglottides are released into the environment with feces. They are eaten by aquatic insects which are intermediate hosts of this parasite. The only record of larvae is from Sigara concinna (Heteroptera, Corixidae) from Kazakhstan.
CONSERVATION STATUS Not listed by the IUCN.
SIGNIFICANCE TO HUMANS None known ♦
Was this article helpful?
This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.