Should I ask for Nofollow on directory URLs?

[McTaggart]

Hi, I'm just putting pizza restaurant on various very relevant 'eating out' directories. Just noticed one directory then proceeds to place your listing on around 40 other sub-directories (each with own URL). They don't put <no follow="">tags on any of the 40 odd backlinking URLs.</no>

I currently have around 300 existing backlinks, to this pizza restaurant, from a diverse range of sites. Should I ask them to put a nofollow on these 40 odd new backlinking directory URLs?

[SanketPatel]

Can you PM me the some of the directory URLs. Most of the directory links are consider as unnatural links. Are these directories adding any value to user. Are you getting any traffic from these directories ? If not, then tell them to remove the link. If they ask for money for removing link you use "Google disavow link tool".

[Bryan_Loconto]

Getting directory links is great if the category is relevant, and the site has a natural link profile. Getting "any" directory link is not helpful: http://www.seomoz.org/blog/web-directory-submission-danger

Directory links are also known as a citation which is going to help your "Google Places" results rank better...