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CHAPTER IV.. General Features of the Elasmobranch Embryo At Successive

The Works of Francis Maitland Balfour, Volume 1 (of 4) · Francis M. Balfour — chapter 3 of 31 · ~29 words · public domain

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GENERAL FEATURES OF THE ELASMOBRANCH EMBRYO AT SUCCESSIVE STAGES, pp. 286-297.

Description of Stages A-Q. Enclosure of yolk by blastoderm. Relation of the anus of Rusconi to the blastopore.

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