REDESCRIPTION OF THE MONOZOIC CESTODE KHAWIA ARMENIACA (CHOLODKOVSKY, 1915) SHULMAN, 1958 (CESTODA: CARYOPHYLLIDEA) FROM CYPRINID FISH IN TANA LAKE, ETHIOPIA
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Abstract
Khawia armeniaca (Cholodkovsky, 1915) (Cestoda: Lytocestidae) is described from cyprinids Labeobarbus intermedius and Labeobarbus tsanensis in Tana Lake in Ethiopia. It is characterised with its afossate scolex in a semi-bulbate shape and a smooth anterior margin. Testes are distributed at the median, with the testicular field reaching the anterior region of cirrus sac. Previtelline follicles are distributed at median and lateral body, extending to anterior or posterior region of the cirrus sac. Uterus is looped between the posterior region of the ovary and the posterior region of the cirrus sac, not reaching the anterior region of the cirrus sac. Few vitelline follicles are present along the uterus margin and few or rare along the ovarian margin. K. armeniaca possesses follicular and butterfly-shaped ovary, with gonopores separated but close to each other, and male gonopore is at the anterior region of the female gonopore, but form a common genital atrium at the surface. Postovarian vitelline follicles are less than 100, touching or far from the posterior ovarian arm.
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