In-ter-esting...
Oh well, looks like a Prima/Vera derived fixed-pitch font included in Snow Leopard...
http://blog.jjgod.org/2009/03/17/snow-leopard-font-related-changes/
Move along, nothing to see here...
At last, a replacement for the venerable Monaco (though I've been using Andale Mono for that myself anyway).
http://Translating that blog post revealed that Mac OS X 10.6 abandons the .dfont format for .ttc (TrueType Collection) as the favored format of Apple system fonts, though it does not indicate whether legacy compatibility will remain for that or other font formats.
DejaVu's glyphs are mostly unchanged from Vera Sans Mono. The goal of the DejaVu font project is to expand and improve on the character sets of the Vera families in an open-source environment.
Panic Sans is based on DejaVu. The changes are fewer than Menlo's—mostly the B, e, hyphen and underscore are the only noticeable differences between Panic Sans and DevaVu/Vera.
All the fonts share the same weight width and line-height.
Captured from web.archive.org on 20 Sep 2019. view this capture