Fig. 2.9 Position of spine bases in spinose ooecia. ( A – D ) Distelopora
bipilata ; ( E ) Distelopora langi ; ( F – H ) Distelopora spinifera . ( A ) Part of
colony with non-brooding autozooids and a damaged ovicell (arrowed);
( B ) ooecial spine bases arranged in a regular semicircle; ( C ) ooecial spine
bases located at some distance from the mural rim of the distal autozooid;
( D ) ooecial spine bases arranged in a gently curved arc (medial spines
adjacent to mural rim). ( E ) Part of colony with non-brooding autozooids
and two damaged ovicells (ooecial spine bases form gently curving arcs
( arrowed ); medial spines adjacent to mural rim). ( F – H ) Ooecial spine
bases arranged as a horseshoe ( arrowed in ( F ); in ( H ) ovicell spine bases
are located at some distance from the mural rim of distal autozooid)
(From Ostrovsky and Taylor 2005a , courtesy of John Wiley and Sons,
http://onlinelibrary.wiley.com/doi/10.1111/j.1096-3642.2005.00179.x/
abstract ). Abbreviations: cr cryptocyst, dz distal autozooid, mz maternal
autozooid, of ovicell fl oor, os oral spine. Scale bars: A , 127 μm; B , 58.8
μm; C , 37 μm; D , 29.4 μm; E , 125 μm; F , 100 μm; G , 28.6 μm; H , 40 μm