SPECIES: | DATE : |
Env. Condition | |||||||
Mother Shell Locality | Ave. in 20 e Ave. in 50e | W.T. (°C) | |||||
Egg Condition Egg Size Deformity ratio | |||||||
Date | Time | Stage | Check Mark | Film No. | W.T. | Comments | |
1 | Fertilization | Check fertilization ratio | |||||
2 | Polar body appearance | ||||||
3 | 2 Cell appearance | ||||||
4 | Polar body appearance | ||||||
5 | 4 Cell appearance | ||||||
6 | 8 Cell appearance | ||||||
7 | 16 Cell appearance | ||||||
8 | Egg (your items) | ||||||
9 | Grastrula | ||||||
10 | Brastrula | ||||||
11 | B. with cillia gardle | ||||||
12 | Trochophor in cell | ||||||
13 | Trochophor hatch out | ||||||
14 | Trochophor larval shell | ||||||
15 | Veliger large I. sh. | ||||||
16 | Veliger with verum | ||||||
17 | Veliger perfect I. sh. | ||||||
18 | Veliger tortion | ||||||
19 | Veliger (your items) | ||||||
20 | Veliger with opeculum | ||||||
21 | Veliger eye spot | ||||||
22 | Veliger (your items) | ||||||
23 | Veliger otholith app. | ||||||
24 | Veliger foot fully developed | ||||||
25 | Veliger (your items) | ||||||
26 | Young shell with peristomal shell | Landing time (Half No.landed in tank) |