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File:Nassa mutabilis embryo.jpg

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Description Fig. 101.— Unequal cleavage of a snail’s egg, Nassa mutabilis. (After Bobretzky.) I, the first meridional furrow has divided the egg into unequal parts; II, the second meridional furrow has formed three smaller and one larger cleavage sphere (seen from the side); III, the equatorial furrow has formed four smaller animal and four larger but unequal vegetative cells (seen from the animal pole)
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Source https://archive.org/details/cu31924001021835/page/154/mode/1up?view=theater A manual of zoology" (1902)A manual of zoology. New York, H. Holt and Company
Author Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling)

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current18:50, 10 March 2024Thumbnail for version as of 18:50, 10 March 20241,309 × 608 (399 KB)Rasbak (talk | contribs){{Information |description=Fig. 101.— Unequal cleavage of a snail’s egg, Nassa mutabilis. (After Bobretzky.) I, the first meridional furrow has divided the egg into unequal parts; II, the second meridional furrow has formed three smaller and one larger cleavage sphere (seen from the side); III, the equatorial furrow has formed four smaller animal and four larger but unequal vegetative cells (seen from the animal pole) |date=1902 |source=https://archive.org/details/cu31924001021835/page/154/mo...

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