Citrilolepis, Dimitrova & Georgiev & Mariaux & Vasileva, 2019

Dimitrova, Yana D., Georgiev, Boyko B., Mariaux, Jean & Vasileva, Gergana P., 2019, Two new cestode species of the family Hymenolepididae Perrier, 1897 (Cyclophyllidea) from passerine birds in Ethiopia, with the erection of Citrilolepis n. g., Syst Parasitol 96, pp. 279-297 : 286

Citrilolepis n. g.

Diagnosis

Cyclophyllidea , Hymenolepididae . Body mediumsized. Scolex oval, covered by distinct microtriches. Rostellar apparatus musculo-glandular. Suckers round, muscular. Rostellum retractile, ovoid. Rostellar sheath oval, thick-walled, not reaching level of posterior margin of suckers. Rostellar hooks diorchoid, more than 10 in number, in single row. Neck long. Strobila with gradual maturation. Proglottides craspedote, much wider than long. Inner longitudinal muscle bundles numerous. Ventral osmoregulatory canals often with distinct irregular transverse anastomoses. Genital pores unilateral, sinistral. Genital ducts dorsal to osmoregulatory canals. Testes oval, usually three, rarely four or five per proglottis, arranged in transverse line, rarely in triangle; situated usually in two groups separated by female glands. Cirrus-sac elongate, thin-walled, situated near anterior proglottis margin, not reaching midline of proglottis. Cirrus cylindrical, armed. Female glands median. Ovary multilobate, median. Vitellarium median, with irregular shape, consisting of 3–4 compact, oval lobes, posterior to ovary. Seminal receptacle voluminous, convoluted. Vagina with thick-walled copulatory part, surrounded by thick cellular sleeve; ventral or posteroventral to cirrus-sac; lumen of copulatory part covered by hair-like microtriches. Young uterus narrow, tubular, transversely-elongated; with further development becoming labyrinthine, with numerous sacculations. Fully-developed uterus sacciform, thick-walled, occupying entire median field, not crossing lateral osmoregulatory canals. Eggs oval or elliptical, with thick embryophore. In Fringillidae (Passeriformes) . Type-species: Citrilolepis citrili n. g., n. sp.

Etymology: The name of the new genus is derived from the common English name (‘‘citril’’) of the typehost; ‘‘ lepis ’’ (Latin) - scale, a frequently used ending for names of cyclophyllidean cestode genera.