Having a locule, or chamber. A loculate
is made of a chamber with a
velum and a
for two of its walls. A loculate valve has loculate areolae. From Latin for small space.
Example genera with loculate areolae include Diploneis, Muelleria and Neidium.
Round, F.E., Crawford, R.M. and Mann, D.G. (1990). The Diatoms. Biology and Morphology of the Genera. Cambridge University Press, Cambridge, 747 pp.