Women can also be misogynists. There are a lot of reasons why a woman would say that she "doesn't get along with other women" though, it's not necessarily misogyny.
I have just a few close friends and a lot of acquaintances. My close friends include both men and women. TheBF is my absolute best friend. I tell him everything and nothing I ever tell him ever causes any problems between us, which is the way it should be between best friends.
I know that sexual rivalry is a problem among women, and I suspect that has something to do with it, and that may affect very attractive or very sexual women more since they present a greater "sexual threat." I've been betrayed many times by female friends. When I was younger, quite a few of my female friends betrayed me by trying to seduce my First Love. One friend of mine, a virgin, drove over to my First Love's house and knocked his door. When he answered, she went straight to his bedroom and proceeded to remove all of her clothing. She wanted him to take her virginity. Another friend of mine tried to kiss my First Love several times, unsuccessfully, which he didn't tell me about for a long time, until it happened a few times. When I was older, one of my roommates asked my First Love for a ride somewhere, and while he was driving she took off every single article of her clothing in an attempt to seduce him, in broad daylight. None of those three women ever indicated that they would betray me one day and all of them pretended to be my close friends. (Okay, about the friend who tried to get him to take her virginity did call him a "sex god" and said that he "oozed a pheromone" and said that she had been attracted to him from the moment that they met, about six months earlier, but I thought that was in the past.) None of my First Love's male friends ever betrayed his trust by coming onto me. TheBoyfriend's female roommate was a passive-aggressive bitch towards me and treated me like I wasn't good enough for him, but I saw right through her. She was obviously hoping to make the jump from her bedroom to his, which he thought was annoying. She only pretended to be "friendly" towards me. Sometimes when I've begun dating someone new, there have been female friends of my new beau who've behaved catty towards me, and almost every single time I eventually figured out that sometime in the past there had been a one night stand or something else like that that just never panned out, or I discovered that the woman was pining after the man I was dating. Before TheBoyfriend and I started dating, I heard a lot of my female friends say naughty naughty things about TheBoyfriend and they all wanted him. One of those friends (former friend, now) still hasn't forgiven me. After our first date, she said, "Well... I guess you won." The last time I spoke to her she was cold towards me, obviously still jealous and angry at me. When I was in my early twenties, a rival was one of the people involved in spreading malicious and damaging gossip about me. She insisted that she was my friend. Experiences like these have made me wary of other women.
There are some women who just seem to be naturally catty towards other women. I imagine that those might be some of the women who "don't get along with other women." I don't get it. I find that behavior confusing. In the workplace there have been tensions with certain other women, for seemingly no apparent reason at all, or at least no reason I could detect. I suspect that isn't sexual rivalry but some sort of social rivalry, but the moves appear to be identical. I've been treated that way by a few girlfriends of TheBoyfriend's old college buddies. I don't understand why or what the motivation is for that. Most of them seem to have accepted me now, but one never will and she's just a passive-aggressive bitch to me every chance she gets. I've never done anything to that woman, but when her boyfriend hosted us and some other friends for Mardi Gras, she took every opportunity to contradict me or make my time there unpleasant, even though that was totally inappropriate behavior for the girlfriend of the host. Why? Who knows. I put up with it as well as I could so as not to insult the host or TheBoyfriend. I suppose she was trying to assert some sort of social dominance over me? That's an issue that rarely comes up in male/female friendships.