Default font Inconsolata but guillemets in STIXGeneral

["Heilmann, Till A." <till.heilmann@unibas.ch>]

I want to use Emacs 24.1 (9.0) downloaded from http://emacsformacosx.com/ with the Inconsolata font in OTF on Mac OS 10.7.4. My ~/.emacs contains only one line:

(set-face-attribute 'default nil :font "Inconsolata-16")

The font is mostly displayed correctly in the buffer (see first output of describe-char below), except for guillemets (see second output of describe-char below). Does anyone have an idea why Emacs uses STIXGeneral instead of Inconsolata to display guillemets? BTW, it messes with the line spacing too: lines with guillemets have more spacing than others.

Thanks and regards,
Till

Position: 54 of 37772 (0%), column: 2
            character: E (displayed as E) (codepoint 69, #o105, #x45)
    preferred charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x45
               syntax: w 	which means: word
             category: .:Base, L:Left-to-right (strong), a:ASCII, l:Latin, r:Roman
          buffer code: #x45
            file code: #x45 (encoded by coding system utf-8-unix)
              display: by this font (glyph code)
    nil:-apple-Inconsolata-medium-normal-normal-*-16-*-*-*-m-0-iso10646-1 (#x45)

Character code properties: customize what to show
  name: LATIN CAPITAL LETTER E
  general-category: Lu (Letter, Uppercase)
  decomposition: (69) ('E')


Position: 4190 of 37772 (11%), column: 2
            character: › (displayed as ›) (codepoint 8250, #o20072, #x203a)
    preferred charset: unicode (Unicode (ISO10646))
code point in charset: 0x203A
               syntax: . 	which means: punctuation
             category: .:Base
          buffer code: #xE2 #x80 #xBA
            file code: #xE2 #x80 #xBA (encoded by coding system utf-8-unix)
              display: by this font (glyph code)
    nil:-apple-STIXGeneral-medium-normal-normal-*-16-*-*-*-p-0-iso10646-1 (#x76)

Character code properties: customize what to show
  name: SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
  old-name: RIGHT POINTING SINGLE GUILLEMET
  general-category: Pf (Punctuation, Final quote)
  decomposition: (8250) ('›')