E. KOCH1, B.C. WINIK2, A. CASTRO-VAZQUEZ1,3,*
BIOCELL, Vol.33, No.1, pp. 49-65, 2009, DOI:10.32604/biocell.2009.33.049
Abstract Development of Pomacea canaliculata from the gastrula stage until the first day after hatching is described. Trochophore embryos are developed after gastrulation, showing the prototroch as a crown of ciliated orange-brownish cells. However, no true veliger embryos are formed, since the prototroch does not fully develop into a velum. Afterward, the connection between the fore- and midgut is permeated and the midgut becomes full of the pink-reddish albumen, which is stored into a central archenteron’s lake, from where it is accumulated into the large cells forming the midgut wall (“giant cells”). Electron microscopy of giant cells in late embryos showed… More >
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