The prosobranchiate gastropods are divided into three orders, the Archaeogastropoda, the Mesogastropoda and the Stenoglossa. In the first of these groups the gonad is connected with the right kidney by a duct which is developed from the ovary, and the sex cells escape to the posterior end of the mantle cavity through the right ureter. The eggs are usually shed singly into the sea where fertilization occurs. In the Mesogastropoda and Stenoglossa the right kidney is not developed and the ovarian duct leads to a short and narrow section of the genital duct which is typically ciliated, and may communicate with the pericardium by a gonopericardial duct and passes anteriorly to a long glandular tract running forwards to the mouth of the mantle cavity. This glandular section is incipient in the archaeogastropod Calliostoma zizyphinum. It is probably formed, as Thiele (1935) suggests, by an ectodermal intucking and will be referred to as the pallial oviduct, for it lies anterior to the opening of the original right kidney, and must be derived from the ectoderm of the mantle (Bourne, 1908; Giese, 1915). The short duct which links it with the ovarian duct will be termed the renal oviduct: in Paludina (=Viviparus), in which its development has been investigated (Drummond, 1903), it is formed from the vestige of the right kidney, and even in the highly specialized Stenoglossa it retains the connexion with the pericardium which is characteristic of the right and left kidneys of the archaeogastropods. Similarly, in the male system of the Mesogastropoda and Stenoglossa there can be distinguished a testis duct, which is connected to the posterior end of the mantle cavity by a renal vas deferens, and this in turn is followed by a pallial vas deferens.

中文翻译：

---

Theodoxus、Lamellaria 和 Trivia 的生殖管及其在前枝中的进化讨论

前鳃类腹足动物分为三个目，古腹足纲、中腹足纲和窄舌亚纲。在这些组中的第一组中，性腺通过从卵巢发育而来的导管与右肾相连，性细胞通过右输尿管逃逸到套腔的后端。卵通常单独排放到发生受精的海中。在中腹足纲和窄舌纲中，右肾发育不全，卵巢管通向生殖管的短而窄的部分，该部分通常有纤毛，可通过性腺管与心包相通，并向前通向一条长的腺管。前进到地幔腔口。这个腺体部分在古腹足动物中是早期的紫锥花. 正如 Thiele (1935) 所暗示的，它可能是由外胚层插入形成的，将被称为宫颈输卵管，因为它位于原始右肾开口的前面，并且必须来自地幔的外胚层（Bourne，1908；Giese，1915）。连接它与卵巢管的短管将被称为肾输卵管： 在帕卢迪纳(=胎生), 其中对其发育进行了研究 (Drummond, 1903), 它是由右肾的残余物形成的, 即使在高度特化的 Stenoglossa 中, 它也保留了与心包的连接, 这是右肾和左肾的特征古腹足动物。类似地，在中腹足纲和窄舌纲的雄性系统中，可以区分出一个睾丸导管，它通过一个连接到外套膜腔的后端。肾输精管，而这又是一个苍白的输精管.