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Sinergasilus lieni females without eye sacs attach to the proliferated... | Download Scientific Diagram
![Biology of the vertebrates : a comparative study of man and his animal allies. Vertebrates; Vertebrates -- Anatomy; Anatomy, Comparative. Gill Sac â Outer Duct from Sac Common Opening of Branchial Biology of the vertebrates : a comparative study of man and his animal allies. Vertebrates; Vertebrates -- Anatomy; Anatomy, Comparative. Gill Sac â Outer Duct from Sac Common Opening of Branchial](https://c8.alamy.com/comp/RHJRCA/biology-of-the-vertebrates-a-comparative-study-of-man-and-his-animal-allies-vertebrates-vertebrates-anatomy-anatomy-comparative-gill-sac-outer-duct-from-sac-common-opening-of-branchial-ducts-fig-321-diagrams-of-the-heads-of-a-bdellostoma-and-b-myxine-dorsal-views-partly-dissected-to-show-arrangement-of-gills-after-dean-4-elasmobranch-and-holocephalan-gills-gills-of-elasmobranch-fishes-are-lateral-in-position-in-sharks-and-dog-fishes-but-ventral-in-the-flattened-skates-and-rays-they-open-independently-to-the-outside-and-are-separated-from-each-other-not-only-by-skele-RHJRCA.jpg)
Biology of the vertebrates : a comparative study of man and his animal allies. Vertebrates; Vertebrates -- Anatomy; Anatomy, Comparative. Gill Sac â Outer Duct from Sac Common Opening of Branchial
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