Seasonal morphological variation of the vas deferens of scorpion mud turtle (Kinosternon scorpioides)


  • Diego Carvalho Viana Universidade de São Paulo
  • Leandro Almeida Rui Universidade de São Paulo
  • Amilton Cesar dos Santos Universidade de São Paulo
  • Maria Angélica Miglino Universidade de São Paulo
  • Antônio Chaves de Assis Neto Universidade de São Paulo
  • Lianne Polliane Fernandes Araujo Universidade Estadual do Maranhão
  • Antonia Santos Oliveira Universidade Estadual do Maranhão
  • Alana Lislea Sousa Universidade Estadual do Maranhão


Kinosternon, Reproduction, Vas deferens, Morphometry, Ultrastructural


This study aimed to characterize the morphology of the vas deferens ofKinosteron scorpioides by macroscopic and microscopic analysis. Were used 20 adult male jurarás collected at regular intervals during the year and divided into four experimental groups in the rainy and dry seasons, being processed for light microscopy, scanning electron microscopy and transmission electron microscopy. Morphometry for tubular and luminal diameters and epithelial height were also performed. On rainy season, vas deferens presented pseudostratified epithelium with cylindrical cells, spermatozoids and milky fluid in the lumen, with cytoplasmic organelles and lipid vesicles. On dry season, epithelium was pseudostratified with cuboid cells, with cellular debris and no spermatozoids. There was significant variation (p<0,05) for morphometry of vas deferens, with lower values of tubular and luminal diameters on rainy season, and higher epithelial height on dry season.




How to Cite

Viana, D. C., Rui, L. A., Santos, A. C. dos, Miglino, M. A., Assis Neto, A. C. de, Araujo, L. P. F., Oliveira, A. S., & Sousa, A. L. (2014). Seasonal morphological variation of the vas deferens of scorpion mud turtle (Kinosternon scorpioides). Biota Neotropica, 14(3). Retrieved from //




Most read articles by the same author(s)