Some specimens also have an arcuate black band over the forehead from one outer corner of the eye to the other.
These dichotomous processes are nothing more than branches developed from the arcuate, or mother cells.
Valve narrow, with arcuate dorsal and straight ventral margin, acute at the ends.
During all these changes, while the zygospore enlarges, the wall of the arcuate cells becomes coloured brown.
Valve linear, arcuate on the dorsal, straight on the ventral side, reflexed at the extremities.
When the Clavola of the Antenn grows gradually narrower towards the apex, and is arcuate or incurved so as to resemble a sickle.
Multifoil, mul′ti-foil, adj. having more than five foils or arcuate divisions.
The cell measures one cubic inch, the entrance tunnel being one and one half centimeters long, and arcuate.
The frustules are curved or arcuate (arcus, a bow) in the side view, oblong and narrowed at the ends in the front view.
These processes appear at first on one of the arcuate cells in successive order.
arcuate ar·cu·ate (är'kyōō-ĭt, -āt')
Formed in the shape of an arc.