Tryp a no soma (tri-pan-o-so'mah)

A genus of protozoa, of the phylum Mastigoph-ora and the family Tryp a no som i dae, with a flagellum and an undulating membrane. They increase by longitudinal division and in some species several forms have been observed, which infest both vertebrates and invertebrates. A few species have been artificially cultivated. For species of Tryp a no soma, see table. T. Brucei. A parasite widespread in Africa, causing nagana in horses and other equines. The intermediary host transmitting the disease is the tsetse fly or Glo ina morsitans. T. cruz i. A species found in human blood in Brazil. T. dimorph on. See table. T. equinum. A species found in South America in the mal de caderas, a fatal febrile disease of horses. T. equiperdum. A species causing dourine, or mal du coit, a sexual disease, resembling syphilis, in horses. T. Evansi. A form which produces a disease in India called surra and affecting horses, mules, camels, and cattle with fever, paralysis and death. T. gambiense. A species occurring in the cerebrospinal fluid and the blood of human beings, suffering with the sleeping sickne . The disease is transmitted to the tsetse fly, called Glo ina palp is. T. hominis. See T. gambiense. T. Lewisi. The t. of the rat, the disease being transmitted by lice and fleas. This parasite has been cultivated on rabbit blood agar. T. Theileri. See table. [Gr., trypan, to bore, + soma, the body.]