Transcriber’s Notes:
- Text enclosed by underscores is in italics (_italics_).
- Text enclosed by pluses is in small caps (+Small Caps+).
- Blank pages have been removed.
- Obvious typographical errors have been silently corrected.
- Errata have been applied.
- Description footnotes have been moved to just after the species
header, for consistency and to avoid interruption of the main text.