A fine structural study of metamorphosis of the hydrozoan Mitrocomella polydiademata

Vicki Martin; Fu-Shiang Chia; Ron Koss

doi:10.1002/jmor.1051760303

A fine structural study of metamorphosis of the hydrozoan Mitrocomella polydiademata

J Morphol. 1983 Jun;176(3):261-287. doi: 10.1002/jmor.1051760303.

Authors

Vicki Martin¹, Fu-Shiang Chia², Ron Koss²

Affiliations

¹ Department of Biology, University of Louisville, Kentucky 40292.
² Department of Zoology, University of Alberta, Edmonton, Alberta, Canada T6G 2E9.

PMID: 30049071
DOI: 10.1002/jmor.1051760303

Abstract

This report is a comprehensive fine structural analysis of the morphological changes occurring during metamorphosis of the marine hydrozoan Mitrocomella polydiademata. Five stages are recognized during metamorphosis: planulae just prior to settlement, ball and filiform stages, immature polyps, and primary feeding polyps. Settlement and metamorphosis of cnidarian planulae involve such changes as ciliary arrest, discharge of nematocytes, secretion of glandular cells, differentiation of cells, and changes in cell and body shape.