5. Brief comments on peculiar galaxies Kaz 63, Kaz 65, Kaz 69 and Kaz 211

As it can be seen from Table 2, the galaxies Kaz 63, 65, 69 and 211 have unusual values for at least two H I related parameters (Kaz 211 is being distinguished by three parameters). These unusual ratios are clear evidence of their peculiar character, so it seems interesting to inquire about their optical data. Kaz 63 constitutes a pair with UGC 10324 (Paper I). Although its radio signal is rather well separated from that of UGC 10324, the latter may be the cause of such unusual values of H I mass to luminosity and total mass to luminosity ratios. The influence of the environment is a well-known phenomenon - for example, the galaxies with close companions have on average a lower HI-to-luminosity ratio than isolated galaxies (Bottinelli 1982). Obviously, Kaz 63 does not follow that trend having (along with Kaz 211) the highest relative H I content among our sample galaxies.

Data on the optical spectra of Kaz 65 (Kazarian 1987) are rather poor: in the range 5600 - 7000 A the continuum is faint and the only lines identified are [NII] 6584 A and ${\rm H}_{\alpha}$ which are rather usual for these galaxies.

Kaz 65 (IRAS 16155+6831) was thought to be very luminous X-ray source and included in the Catalogue of cross-correlated sources from ROSAT All-Sky Survey (RASS) with the IRAS Point Source Catalogue published by Boller et al. (1992). More recently, Moran et al. (1994) reported Kaz 65 as a H II galaxy which was removed from the Boller's catalogue by its authors following the new processing of the RASS data.

Thus, more detailed observational data on Kaz 65 are needed to verify the nature of its peculiar H I related parameters.

Galaxies Kaz 69 and 211 are studied in detail by Kazarian & Kazarian (1990). Both are low luminosity dwarfs ( $M_{{\rm pg}}=-16\hbox{$.\!\!^{\rm m}$ }3$ and $-16\hbox{$.\!\!^{\rm m}$ }2$respectively for Kaz 69 and 211) with rather different physical parameters. Thus, the electron densities in the central parts of these galaxies are $230~{\rm cm}^{-3}$ and $2800~{\rm cm}^{-3}$ respectively for Kaz 69 and 211 with corresponding total gas amounts of $1~10^{4}~M_{\odot}$ and $2.5~10^{2}~M_{\odot}$ due to the larger size of Kaz 69.

Full width at half maximum (FWHM) for a number of [O III], [N II], [S II] as well as ${\rm H}_{\alpha}$ and ${\rm H}_{\beta}$ emission lines in the spectra of Kaz 69 ( $\approx300$ km s^-1) are certainly higher than those observed in classical galaxies. There are clear indications that this galaxy is a LINER satisfying criteria given by Heckman (1980).

The elevated value of the indicative total mass for Kaz 69 may be partly caused by a rather high relative amount of the dust evidenced by a narrow dark lane crossing the galaxy buldge, clearly seen on its direct images.