Transcriber’s Notes:

Throughout

Ditto is often represented by ————, or . . . . , or ”.

Enclycopædia of Anatomy and Physiology

‘Enclycopædia’ changed to ‘Encyclopædia’.

Pæcilasma is used throughout (et passim) most of the text.

It should read Pœcilasma.

No change from the original.

CORRIGENDA AND ADDENDA.

These changes were not added, due to the general nature of most of the comments.

[Page 27] Footnote 12

pedunculum mutatæ et invoucrum

‘invoucrum’ changed to ‘involucrum’.

touch the cæca were such exist

‘were’ changed to ‘where’.

References to Mouth parts read Pl. IX, where I believe that Pl. X was meant. No change except for inserted links that refer to plate X.

Magaz. der Gesellsch. Natuforsch.

‘Natuforsch’ may be ‘Naturforsch’.

Length of whole organ, to the inner margin of the oblique basal articulation } 1/6000

The number here was not legible, as printed. I think it may be 19/6000 from the table of comparative measurements later in this book.

Frith of Forth

‘Frith’ may be ‘Firth’.

Lepas

membrancea, 146

‘membrancea’ changed to ‘membranacea’.

Inconsistent accents were verified and follow the original.

Hyphen variability

multiarticulate	multi-articulate
uniarticulate	uni-articulate