Note 163 — XII. DECEMBER.
Reading edition
Leuconia Gossei (Bowerbank MS.). Dr. Bowerbank, to whom I have communicated this species, thinks that it may have been confounded by former observers with the preceding. “The broad specific difference between them is that L. nivea has very large triradiate spicula at its surface, and L. Gossei has not, but has in lieu of them very large acerate ones at right angles to the surface.” (Bowerb. in litt.)