Direct Development in the Ascidian Molgula retortiformis (Verrill, 1871).

  title={Direct Development in the Ascidian Molgula retortiformis (Verrill, 1871).},
  author={William R. Bates},
  journal={The Biological bulletin},
  volume={188 1},
The cellular features of the ascidian Molgula retortiformis (Verrill, 1871), a direct developing species, were investigated with the aid of transmission electron microscopy, histochemistry, and immunocytochemistry. Developmental comparisons between direct and indirect developing ascidians will further our understanding of how developmental processes evolve. M. retortiformis eggs are surrounded by a follicular envelope comprising a layer of outer follicle cells attached to an acellular chorion… CONTINUE READING