California Grunion

Leuresthes tenuis

Atheriniformes: Atheriniopsidae (New World silversides)

© Peter J. Bryant.
Back to Natural History of Orange County, California

Embryogenesis (hours or days after fertilization) Back to Grunion main page

12h - blastula stage
18h - early gastrula stage
24h - late gastrula stage
30h - early segmentation stage

36h - mid segmentation stage
48h - late segmentation stage
84h - pharyngula stage
108h - neural tube closing

7d - eye pigmentation
10d - beginning of body pigmentation
15d - ready to hatch but waiting for the next Spring Tide?