原尾蜥虎(Hemidactylus bowringii)雄性生殖周期的研究

对福州产的原尾蜥虎（Ｈｅｍｉｄａｃｔｙｌｕｓｂｏｗｒｉｎｇｉｉ） 雄性生殖周期的研究结果表明：１０ 月份精子发生开始新的周期性复生，精原细胞发育进入增殖期，中旬曲细精管除精原细胞外尚有较多的初级精母细胞；１１ 月初已有较多的精细胞，曲细精管管腔中开始出现少量的精子；１２ 月份，生精活动非常活跃，输精管始见有成熟的精子，１２ 月下旬进入冬眠期，成熟的精子释放到输精管中过冬，冬眠期间生精活动趋于停滞，表现为曲细精管管径和生精上皮厚度都有所下降；次年３ 月底４ 月初陆续出蛰，生精活动又恢复并逐渐增强，４、５ 月份精子发生相当活跃，６ 月份是精子发生的高峰期，也是交配繁殖的高峰期；原尾蜥虎一年只繁殖一次，繁殖期过后，７ ～９ 月份，生精活动逐渐减弱，曲细精管的管腔逐渐消失，初级、次级精母细胞、精细胞逐渐减少、退化，精子逐渐退化、消失，到９ 月下旬曲细精管和输精管都见不到精子，此时的曲细精管主要由精原细胞组成，一个周期到此结束．

MALE REPRODUCTIVE CYCLE OF BOWRING'S GECKO (HEMIDACTYLUS BOWRINGII)

Ninety three adult male Bowring's geckoes ( Hemidactylus bowringii ) were collected in Fuzhou, Fujian, China during the active seasons from June, 1996 to March, 1998. The results from the study indicated that testis size, including weight and volume, was smallest in September and reached a peak in next June. In late September, both seminiferous tubule diameter and epithelial height were smallest, and spermatogonia were the most prevalent type of cell. Tubule diameter and epithelial height increased from October. At the end of October and the beginning of November, some spermatozoa appeared in seminiferous tubule cavity. The epithelial height was the largest in December, indicating that spermatogenesis was considerably active. There were some spermatozoa in different ducts at this time. Because the releasing of mature spermatozoa and spermatogenesis was bogged down during hibernation, the tubule diameter and epithelial height both decreased greater in March than in December, and both of them increased again after March. The tubule diameter reached a maximum size in June, corresponding to peak spermatogenesis. The most prevalent cells at this time were spermatids and spermatozoa. The tubule diameter decreased from July, but the epithelium from May to September.