ר' אבא בר טבלא

Rabbi Abba bar Tavla in the name of Rav [(in the version of the Mishna, the remainder of Yosef was not brought) and it seems to me that there is a typographical error; it should be Rabbi Abba and it should read Rav Tavla, a student of Rav, and this is the indication that the lineage does not mention Rav Tavla. And indeed, he is mentioned many times in the Talmud]: