弹性鳃亚纲
生物
软骨鱼类
胚胎
动物
溜冰
渔业
作者
Aaron C. Henderson,Stephan Bruns,Shamsa Al Hameli
摘要
Maternal nutrient provisioning occurs in most live-bearing chondrichthyan lineages. It is particularly conspicuous in the Myliobatiformes, whereby the endometrium secretes a nutrient-rich histotroph that is utilized by the developing embryo. The occurrence of a deformed and mouthless, late-term myliobatiform embryo is described here, demonstrating that the direct, oral ingestion of histotroph is not obligatory in these animals.
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