Ct. Ba et al., DIVERSITY IN THE GENERA AVITELLINA AND THYSANIEZIA (CESTODA, CYCLOPHYLLIDEA) - GENETIC-EVIDENCE, Journal of the Helminthological Society of Washington, 61(1), 1994, pp. 57-60
The isoenzyme electrophoretic study of 2 species of cestodes, Avitelli
na centripunctata and Thysaniezia ovilla, sampled in African (Senegal)
domesticated ruminants, revealed a complex of cryptic species. Four s
pecies of Avitellina were found in sheep and goats and 1 in cattle. Tw
o species of Thysaniezia, 1 specific to cattle and the other to sheep,
were also revealed. Despite a probable preponderant selfing mode of r
eproduction, the existence of the detected species was confirmed by hi
gh levels of genetic differentiation.