Figure Caption/Comments:

Image description by: Paula Mabee and Nathan Bird

Anatomical structures shown: parhypural, hypural 1, notochord, actinotrichia

Stage: larval, 4.0 mm NL* *NL (Notochord Length) refers to the distance from the tip of the snout (upper or lower jaw, whichever is most anterior) to the posterior tip of the notochord

Genetic (background) strain: unknown

Genotype: unknown

Animal state: fixed

Labeling: Alcian blue for cartilage, Alizarin red for bone

Description: Skeletogenesis begins with the independent condensation of the parhypural and hypural 1. This image shows these structures at 4.0mm NL. Scale bar = 0.05mm, arrow = hypural 1, * = parhypural

Figure Data:
Anatomy Terms: hypural 1 , parhypural
Developmental Stage:
Day 6
Preparation Image Form View Direction
whole-mount still parasagittal anterior to left