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Résumé :
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A population of the African Beauty Snake, Psammophis sibilans (Linnaeus, 1758), was studied in the Al-Sahayra District, a rural area east of the Nile Delta, Egypt, from December 2019 to June 2021. The male reproductive cycle was vernal, with peak sexual activity occurring in spring. During this period, both the testicular gonadosomatic index and spermatogenic activity reached their maximum values. Likewise, females exhibited their highest ovarian gonadosomatic index in spring and entered vitellogenesis, coinciding with the mating season. Males were more abundant than females in the sampled population. A snout–vent length (SVL) of 420 mm represented the smallest size at which individuals of both sexes were sexually mature. Juveniles comprised only 4% of all snakes recorded. Body mass was greater in males than in females at equivalent SVL, and increased significantly in summer relative to autumn.
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