{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T17:19:23Z","timestamp":1783099163757,"version":"3.54.6"},"reference-count":48,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"name":"Deanship of Graduate Studies and Scientific Research at Jouf University","award":["DGSSR-2025-FC-01062"],"award-info":[{"award-number":["DGSSR-2025-FC-01062"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,7,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>This study presents the first detailed description of the hemipenial architecture of the Arabian horned viper Cerastes gasperettii. The study utilized five adult males collected from Aljouf Province, Saudi Arabia. Macroscopic and microscopic analyses addressed the morphology, histology, and histochemistry of the hemipenis. The hemipenis was a paired and bilobed organ situated at the tail base. The apex was ornamented distally by several spines of variable size, whereas the body region was nude. The sulcus spermaticus was bifurcated distally and represented by a prominent groove that traverses the external surface of the everted organ. Microscopically, the hemipenis was coated by a non-keratinized stratified epithelium, supported by the underlying connective tissue, two concentric cavernosum bodies, and muscular components. The musculus retractor penis magnus was recognized internally, while the cavernosum bodies were encircled by a ring of smooth muscle, intermingled with the connective tissue. Interestingly, the hemipenial spines were supported by a fibrocartilaginous core, providing a structural and functional specialization. The obtained results provide new insights into the hemipenial anatomy and microanatomy of the Arabian horned viper (C. gasperettii), which contribute to a broader understanding of the hemipenial evolution among squamates, species-specific reproductive patterns, and phylogenetic relationships.<\/jats:p>","DOI":"10.1093\/mam\/ozag050","type":"journal-article","created":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T16:14:53Z","timestamp":1783008893000},"source":"Crossref","is-referenced-by-count":0,"title":["Comparative Aspects of the Hemipenial Architecture of the Arabian Horned Viper\n                    <i>Cerastes gasperettii<\/i>\n                    : Macroscopic and Microscopic Analysis With Evolutionary Perspectives"],"prefix":"10.1093","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8646-9253","authenticated-orcid":false,"given":"Diaa","family":"Massoud","sequence":"first","affiliation":[{"name":"Department of Biology, College of Science, Jouf University , Sakaka, Al-Jouf 72341 ,","place":["Saudi Arabia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohamed","family":"Hamza","sequence":"additional","affiliation":[{"name":"Department of Biology, College of Science, Jouf University , Sakaka, Al-Jouf 72341 ,","place":["Saudi Arabia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mervat A","family":"AbdRabou","sequence":"additional","affiliation":[{"name":"Department of Biology, College of Science, Jouf University , Sakaka, Al-Jouf 72341 ,","place":["Saudi Arabia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarah N","family":"Al Zwain","sequence":"additional","affiliation":[{"name":"Department of Biology, College of Science, Jouf University , Sakaka, Al-Jouf 72341 ,","place":["Saudi Arabia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wael","family":"Almughdhab","sequence":"additional","affiliation":[{"name":"Department of Biology, College of Science, Jouf University , Sakaka, Al-Jouf 72341 ,","place":["Saudi Arabia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdulaziz","family":"Al-Huzaim","sequence":"additional","affiliation":[{"name":"Department of Biology, College of Science, Jouf University , Sakaka, Al-Jouf 72341 ,","place":["Saudi Arabia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sulaiman Ali","family":"Alsaleh","sequence":"additional","affiliation":[{"name":"King Salman Bin Abdulaziz Royal Reserve Development Authority ,","place":["Saudi Arabia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Attalla F","family":"El-kott","sequence":"additional","affiliation":[{"name":"Department of Biology, College of Science, King Khalid University , Abha ,","place":["Saudi Arabia"]},{"name":"Department of Zoology, Faculty of Science, Damanhour University , Damanhour ,","place":["Egypt"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ramadan","family":"Kandyel","sequence":"additional","affiliation":[{"name":"Department of Biology, Faculty of Arts and Sciences, Najran University , Najran ,","place":["Saudi Arabia"]},{"name":"Department of Zoology, Faculty of Science, Tanta University , Tanta ,","place":["Egypt"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohamed","family":"Abumandour","sequence":"additional","affiliation":[{"name":"Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Alexandria University , Abis 10 P.O. 21944, Alexandria ,","place":["Egypt"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,7,2]]},"reference":[{"issue":"1","key":"2026070312312398400_ozag050-B1","doi-asserted-by":"publisher","first-page":"135","DOI":"10.1016\/j.sjbs.2015.10.010","article-title":"Ecological aspects of the horned viper, Cerastes gasperettii in the central region of Saudi Arabia","volume":"23","author":"Al-Sadoon","year":"2016","journal-title":"Saudi J Biol Sci"},{"issue":"9","key":"2026070312312398400_ozag050-B2","doi-asserted-by":"publisher","first-page":"1680","DOI":"10.1002\/ar.23622","article-title":"Does sexual selection influence ornamentation of Hemipenes in old world snakes?","volume":"300","author":"Andonov","year":"2017","journal-title":"Anat Rec"},{"issue":"6","key":"2026070312312398400_ozag050-B3","doi-asserted-by":"publisher","first-page":"781","DOI":"10.1111\/ahe.12856","article-title":"Brazilian Boidae Hemipenis morphology: Macroscopic and histological aspects","volume":"51","author":"Bento","year":"2022","journal-title":"Anat Histol Embryol"},{"issue":"3","key":"2026070312312398400_ozag050-B4","doi-asserted-by":"publisher","first-page":"285","DOI":"10.2307\/1564495","article-title":"Hemipenial morphology of African snakes: A taxonomic review. 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