Margin of dolon curling smoothly to distal margin of velum both anteriorly and posteriorly, but dolonal margins not in contact when valves closed.
Source: wiktionary
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2 total sentences available.
Margin of dolon curling smoothly to distal margin of velum both anteriorly and posteriorly, but dolonal margins not in contact when valves closed.
Source: wiktionary
In both cases the histial dolon is united anteriorly with the velar dolon and both genera are also similar in being unisulcate .
Source: wiktionary