The Microvascular Anatomy of Fetal Respiration in the Yellow Stingray (Urobatis jamaicensis)
The yellow stingray, Urobatis jamaicensis, displays an aplacental viviparous mode of reproduction. Although each embryo is initially nourished only from a yolk sac, later trophonemata within the maternal uterus secrete histotroph to provide further nutritional sustenance. Histotroph in some stingray...
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| Format: | Others |
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NSUWorks
2007
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| Online Access: | http://nsuworks.nova.edu/occ_stuetd/267 http://nsuworks.nova.edu/cgi/viewcontent.cgi?article=1129&context=occ_stuetd |