  The HI Parkes All-Sky Survey (HIPASS) is a blind 21-cm survey for
extragalactic neutral hydrogen, covering the whole southern sky. The HIPASS
Bright Galaxy Catalog (BGC; Koribalski et al. 2002) is a subset of HIPASS and
contains the 1000 HI-brightest (peak flux density) galaxies. Here we present
the 138 HIPASS BGC galaxies, which had no redshift measured prior to the Parkes
multibeam HI surveys. Of the 138 galaxies, 87 are newly cataloged. Newly
cataloged is defined as no optical (or infrared) counterpart in the NASA/IPAC
Extragalactic Database. Using the Digitized Sky Survey we identify optical
counterparts for almost half of the newly cataloged galaxies, which are
typically of irregular or magellanic morphological type. Several HI sources
appear to be associated with compact groups or pairs of galaxies rather than an
individual galaxy. The majority (57) of the newly cataloged galaxies lie within
ten degrees of the Galactic Plane and are missing from optical surveys due to
confusion with stars or dust extinction. This sample also includes newly
cataloged galaxies first discovered in the HI shallow survey of the
Zone-of-Avoidance (Henning et al. 2000). The other 30 newly cataloged galaxies
escaped detection due to their low surface brightness or optical compactness.
Only one of these, HIPASS J0546-68, has no obvious optical counterpart as it is
obscured by the Large Magellanic Cloud. We find that the newly cataloged
galaxies with |b| > 10 are generally lower in HI mass and narrower in velocity
width compared with the total HIPASS BGC. In contrast, newly cataloged galaxies
behind the Milky Way are found to be statistically similar to the entire HIPASS
BGC. In addition to these galaxies, the HIPASS BGC contains four previously
unknown HI clouds.
