A Monograph on the Sub-class Cirripedia (Volume 2 of 2) / The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc. - Charles Darwin

In this ebook: Structure of the alæ
Structure of the sheath
In the original book: Structure of the alæ and sheath
In this ebook: Structure of the opercular valves (scuta and terga)
In the original book: Structure of the scuta and terga
In this ebook: Growth of whole shell and microscopical structure
In the original book: Growth of whole shell and minute structure of valves
In this ebook: Muscles of sack
In the original book: Sack, muscles of
In this ebook: Movements and muscles of the cirri
In the original book: Cirri, muscles of
In this ebook: Olfactory sacks
In the original book: Olfactory organs
In this ebook: Larva, first stage
In the original book: Larva, first stages
In this ebook: Larva, second stage
Originally this TOC entry was not present in the book.
In this ebook: Affinities, classification, variation
In the original book: Classification and variation

[Page 34]. Inserted missing title (which appeared in the TOC):
Structure of Shell.

[Page 37]: alæ in all cases (as is obvious in Pachylasma)
In the original book: alæ in all cases (as is obvious in Pachylasma)

[Page 40]: the upper lateral valves alternate
In the original book: the upper Lateral valves alternate

[Page 45]: owing to its midrib, is generally thrust
In the original book: owing to its mid-rib, is generally thrust

[Page 45]. Inserted missing title (which appeared in the TOC):
Structure of the Radii.
and left the original paragraph title as it was:
Radius.

[Page 47]: and of the recipient furrow in Octomeris (Pl.
In the original book: and of the recipient furrow in Octomeris (Pl.

[Page 47]: Structure of the Alæ.
In the original book: Alæ.

[Page 48]: Structure of the Sheath.
In the original book: Sheath.

[Page 49]: Structure of the Basis.
In the original book: Basis.