|
T1
|
Big yolk plug stage (32 hours after fertilization) |
The formation of large yolk plug |
|
T2
|
Wide neural plate formation (45 hours after fertilization) |
The wide neural plate is obvious and segmented into internal and external parts |
|
T5
|
Canal bud separating stage (65 hours after fertilization) |
Formation of the heart primordium and protrusion of tail bud within the mesenchymal rod |
|
T9
|
1 day old larvae |
Raised head, increased pigmentation in the middle of eyes; apparition of triangular notch, beginning of gill differentiation; apparition of transparent yolk sac in the ventral surface |
|
T17
|
11 days old larvae |
Exuberant larvae feeding, swimming in the bottom, apparition of small granular protuberances between the ventral medial tentacles, apparition of ampullary organ primordia around the eyes, gill cover and ventral surface |
