Equatorial girdle as broad as the medullary shell, in the whole breadth radially striped on the margin with ten to fifteen triangular, deeply sulcated teeth, about as long and broad as the medullary shell.
Defn: Scored with deep and regular furrows; furrowed or grooved; as, a sulcated stem.
The bill is strong, and marked above on each sides with a sulcated line: the gape is so wide, as to reach underneath the eye.
It is sulcated and carinated; the colour is yellow-white.
