Egg capsules and early development in Siphonaria diemenensis (Quoy and Gaimard, 1833) and Siphonaria baconi (Reeve, 1856)
Egg capsules and early development in Siphonaria diemenensis (Quoy and Gaimard, 1833) and Siphonaria baconi (Reeve, 1856)
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Siphonaria diemenensis (Quoy 和 Gaimard, 1833) 和 Siphonaria baconi (Reeve, 1856) 的卵囊和早期发育
DOI：
10.1080/00852988.1978.10673917
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发表时间：
1978
期刊：
影响因子：
--
通讯作者：
G. Mapstone
中科院分区：
文献类型：
--
作者：
G. Mapstone
摘要描述了维多利亚州的两种滨海肺藻属的卵，发现它们仅在几个小特征上有所不同。这两个物种的发育也是相似的，从产卵到孵化成一个自由游动的veliger阶段。S.diemenensis。在相同的条件下，通常比沙门氏菌更有活力和发展得更快。对不同发育阶段的胚胎和囊体的测量表明，虽然胚胎从卵到孵化的总体尺寸有所增加。在此期间，胶囊大小没有显著变化。
Summary Spawn of two species of the littoral pulmonate genus Siphonaria from Victoria are described and found to differ only in a few minor features. Development of the two species is also similar and is followed from egglaying to hatching of a free swimming veliger phase. S.diemenensis is.in general more vigorous and develops more rapidly than S.baconi under the same conditions. Measurements of embryos and capsules at different developmental stages show that while the embryos increases in overall size from egg to hatching. the capsule Size does not alter significantly during this period.