Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
(CaCO3 could be ontogenetic calcite or morpho-
genetic calcite, (13)
Evolution of Peritoneum
This is trophic organ of cell.
stellate peritoneal cells
elongate stellate per. cells at tip of
bud
cells thicken & differentially
these are part of dev.
Junicular
strands.
squeezed
cells -> mesoderm
of Junicular cells of pore
strands plates