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opercular series contains four bone
segments known as the preoperculum,
suboperculum,
interoperculum and operculum. The
preoperculum is a crescent-shaped...
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rugose texture on the
dermatocranium and ch**** bones, the
absence of the
suboperculum and the spiracular, and
reduction or loss of the
descending process of...
- a
large dark
blotch on the
operculum but
there is no dark
blotch on
suboperculum or on the
spiny part of the
dorsal fin. This
species reaches a maximum...
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spore discharge in W. americana, such as the ascus, the operculum, the
suboperculum. The spore-bearing cells, the asci, are 330–400 µm long by 16–20 µm wide...
- are
involved in
spore discharge in
Wynnea species: the operculum, the
suboperculum, and the zone of dehiscence. Collectively,
these three structures are...
