Note 41 — 1. Family BALANIDÆ, (or Sessile Cirripedes). (continued 2)
Reading edition
‘Proceedings of the Acad. Nat. Sciences of Philadelphia,’ vol. iv, 1848, p. 1. I may add that I have, also, observed the supra-œsophageal and ophthalmic ganglions in Bal. perforatus.