"Guangyun" and "Jiyun" both give the pronunciation as tu he qie, with the same sound as "duo". "Guangyun" explains it as an ox without horns. It is sometimes written as "犐" in "Yupian". It is sometimes written as "㸯" in "Jiyun".
Also, "Guangyun" and "Leipian" give the pronunciation as ku he qie, with the same sound as "ke". The meaning is the same. "Guangyun" says it is the same as "犐". "Jiyun" says it was originally written as "犐". It is sometimes written as "㸯". A detailed explanation can be found in the commentary on the character "犐" later.
Also, "Jiyun" gives the pronunciation as tang he qie, with the same sound as "tuo". The meaning is the same. It is sometimes written as "㸯" in "Jiyun".