{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T01:02:01Z","timestamp":1784682121920,"version":"3.55.0"},"reference-count":38,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T00:00:00Z","timestamp":1778025600000},"content-version":"vor","delay-in-days":5,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:00:00Z","timestamp":1777593600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100003074","name":"Agencia Nacional de Promoci\u00f3n Cient\u00edfica y Tecnol\u00f3gica","doi-asserted-by":"publisher","award":["PICT\u20102014\u20101281"],"award-info":[{"award-number":["PICT\u20102014\u20101281"]}],"id":[{"id":"10.13039\/501100003074","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Morphology"],"published-print":{"date-parts":[[2026,5]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    The male genital morphology of the plains vizcacha (\n                    <jats:italic>Lagostomus maximus<\/jats:italic>\n                    ) remains poorly characterized despite the species' distinctive reproductive biology and its phylogenetic position within Caviomorpha. In this study, we describe the gross anatomy, histology, and ultrastructure of the penis of\n                    <jats:italic>L. maximus<\/jats:italic>\n                    using light microscopy and scanning electron microscopy. The genitalia of the vizcacha shares several features with other caviomorph rodents, including the absence of a pendulous scrotum, subcutaneous inguinal testes, and a retracted inverted S\u2010shaped penile configuration. Notably, we identify a previously undescribed narrow stylet\u2010like distal process supported by hyaline cartilage and bearing caudally oriented surface spine\u2010like projections, representing a novel morphological specialization among caviomorph rodents. These distal specializations may influence copulatory mechanics by enhancing mechanical stimulation of the female reproductive tract. When considered alongside recent evidence suggesting a mixed ovulatory strategy in\n                    <jats:italic>L. maximus<\/jats:italic>\n                    , including a seminal plasma\u2013induced ovulatory process, these findings raise the possibility that penile morphology contributes synergistically to ovulation induction. Our results expand current knowledge of genital diversity in caviomorph rodents and provide a morphological framework for future functional and evolutionary investigations.\n                  <\/jats:p>","DOI":"10.1002\/jmor.70129","type":"journal-article","created":{"date-parts":[[2026,5,7]],"date-time":"2026-05-07T00:16:26Z","timestamp":1778112986000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Structural Organization of the Penis in the South American Plains Vizcacha (\n                    <i>Lagostomus maximus<\/i>\n                    ), a Caviomorph Rodent"],"prefix":"10.1002","volume":"287","author":[{"given":"Mariela","family":"Giacchino","sequence":"first","affiliation":[{"name":"Centro de Estudios Biom\u00e9dicos B\u00e1sicos, Aplicados y Desarrollo (CEBBAD), Universidad Maim\u00f3nides Ciudad Aut\u00f3noma de Buenos Aires  Argentina"},{"name":"Consejo Nacional de Investigaciones Cient\u00edficas y T\u00e9cnicas (CONICET) Buenos Aires Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pablo I. F.","family":"Inserra","sequence":"additional","affiliation":[{"name":"Centro de Estudios Biom\u00e9dicos B\u00e1sicos, Aplicados y Desarrollo (CEBBAD), Universidad Maim\u00f3nides Ciudad Aut\u00f3noma de Buenos Aires  Argentina"},{"name":"Consejo Nacional de Investigaciones Cient\u00edficas y T\u00e9cnicas (CONICET) Buenos Aires Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan A.","family":"Claver","sequence":"additional","affiliation":[{"name":"C\u00e1tedra de Histolog\u00eda y Embriolog\u00eda, Facultad de Ciencias Veterinarias Universidad de Buenos Aires Buenos Aires Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mar\u00eda C","family":"Gariboldi","sequence":"additional","affiliation":[{"name":"Centro de Estudios Biom\u00e9dicos B\u00e1sicos, Aplicados y Desarrollo (CEBBAD), Universidad Maim\u00f3nides Ciudad Aut\u00f3noma de Buenos Aires  Argentina"},{"name":"Consejo Nacional de Investigaciones Cient\u00edficas y T\u00e9cnicas (CONICET) Buenos Aires Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fernando D.","family":"Lange","sequence":"additional","affiliation":[{"name":"Centro de Ciencias Veterinarias (CCV), Universidad Maim\u00f3nides Ciudad Aut\u00f3noma de Buenos Aires  Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sergio R.","family":"Ferraris","sequence":"additional","affiliation":[{"name":"Centro de Ciencias Veterinarias (CCV), Universidad Maim\u00f3nides Ciudad Aut\u00f3noma de Buenos Aires  Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Noelia P.","family":"Leopardo","sequence":"additional","affiliation":[{"name":"Centro de Estudios Biom\u00e9dicos B\u00e1sicos, Aplicados y Desarrollo (CEBBAD), Universidad Maim\u00f3nides Ciudad Aut\u00f3noma de Buenos Aires  Argentina"},{"name":"Consejo Nacional de Investigaciones Cient\u00edficas y T\u00e9cnicas (CONICET) Buenos Aires Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alfredo D.","family":"Vitullo","sequence":"additional","affiliation":[{"name":"Centro de Estudios Biom\u00e9dicos B\u00e1sicos, Aplicados y Desarrollo (CEBBAD), Universidad Maim\u00f3nides Ciudad Aut\u00f3noma de Buenos Aires  Argentina"},{"name":"Consejo Nacional de Investigaciones Cient\u00edficas y T\u00e9cnicas (CONICET) Buenos Aires Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,5,6]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/ar.a.20144"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1006\/frne.2000.0198"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.5007\/2175-7925.2013v26n4p209"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcz.2024.03.002"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-7998.1986.tb03615.x"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1095\/biolreprod35.4.822"},{"issue":"1","key":"e_1_2_10_8_1","first-page":"275","article-title":"Morpho\u2010Histological Studies on the Male Genital Apparatus of Chinchilla laniger","volume":"47","author":"C\u0103l\u0103mar C. 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