Note 63 — 1. Family BALANIDÆ, (or Sessile Cirripedes). (continued 2)

In the table of measurements of the antennæ of the several genera and species of the Lepadidæ (p. 286) of my former volume, the articulation, called by me basal, I now know to be really the articulation between the basal and second segment. In the fourth column, headed “Length from end of the disc to the inner margin of the basal articulation,” the term inner margin really applies to the oblique curved line separating the thin and scarcely visible membrane from the thicker membrane of that segment. These corrections do not in the least affect the object for which the table was given.