Representative stages in the spermatogenic cycle of T. o. ornata (all specimens obtained in Douglas County, Kansas, 1955).
Figs. 1 to 5, respectively, are sections of seminiferous tubules obtained on May 17, June 14, July 15, Aug. 31, and Oct. 4.
Fig. 6: seminiferous tubule of immature male (plastral length, 88 mm.), six years old, obtained on June 30.
Fig. 7: section of epididymis from mature male obtained on April 17, three days after turtle emerged from hibernation; mature sperm form a continuous dark mass in center of epididymis.
Fig. 8: sperm in uterine portion of oviduct of female obtained on April 18, 1954.
Figs. 1 to 6 and 8 were photographed × 430, and were enlarged 1.4 times.
Fig. 7 was photographed × 35, and was enlarged 1.4 times.
PLATE 20
