For full functionality of this site it is necessary to enable JavaScript. Here are the instructions how to enable JavaScript in your web browser.

FishFace | FaceBase

The 2021 FaceBase Community Forum will be held via Zoom on June 15th.
Interested in presenting your work? Submit an abstract for the poster session! Click here for more information!


8 dpf Development

[ Back to The ceratohyal: associated bones and articulations]
Info Image

Please hold mouse over images to see annotations.

8 dpf
Alizarin red

By 199 hpf, the ceratohyal (ch) has increased in size from that seen at 150 hpf. The overall morphology of the ceratohyal increasingly appears like a dumbbell from the lateral view. The ceratohyal continues to articulate with the interhyal (ih) along the dorso-posterior edge of the ceratohyal, with the basihyal (bh) dorsally and the contralateral ceratohyal medially at the anterior midline, and with branchiostegal rays 2 and 3 (bsr2, bsr3) along the postero-lateral aspect of the ceratohyal. More anterior to branchiostegal ray 2, branchiostegal ray 1 (bsr1) projects postero-ventrally from the medial aspect of the ceratohyal bone (chb) at the middle region of the ceratohyal. The ventral hypohyal (hhv) is obvious now in the perichondrium at the ventro-anterior tip of the ceratohyal.