Lecture 16-Rotifers.pdf - Classes at U. of L.
Lecture 16-Rotifers.pdf - Classes at U. of L.
Lecture 16-Rotifers.pdf - Classes at U. of L.
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Class Bdelloidea—means “leech like”<br />
Body large (> 0.3 mm) elong<strong>at</strong>e, s<strong>of</strong>t bodied forms,<br />
creeping worm-like movement, with no lorica, head<br />
and food flexible and retractile, creeping forms<br />
benthic or epiphytic, foot with two toes, paired<br />
ovaries, corona with two circular lobes<br />
Sex is unknown in bdelloids, only parthenogenetic<br />
females exist, > 300 known species<br />
They are one <strong>of</strong> the most ancient asexual lineages<br />
(<strong>at</strong> least 40 million years)<br />
Many are capable <strong>of</strong> cryptobiosis<br />
Corona, two<br />
circular lobes<br />
paired ovaries<br />
Philodina—mid-section distinct from tail section<br />
Philodina
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