MONODELPHIS STAGING REFERENCE SERIES
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All photographs taken immediately after removing embryo from uterus, with no preparation. Ages are mean age, calculated from time of mating. See data on age/stage relations at end of series.
Stage 22
Approximately 10.1 days after mating
Stage 23
Approximately 10.25 days
STAGE 24
Approximately 10.54 days
STAGE 25
Approximately 10.6 days
STAGE 26
Approximately 10.75 days
STAGE 27
Approximately 10.8
STAGE 28
Approximately 11.3 days
Stage 29
Approximately 11.7 days
stage 30
Approximately 11.75
Stage 31
Approximately 12.2 days
Stage 32
Approximately 13.4 days
Stage 33
Approximately 13.75 days
Birth
Approximately 14.5 days
Age/stage relation based on documented mating (data as of July, 2002)
Stage |
number |
mean age |
min |
max |
20 |
1 |
10.00 |
||
22 |
3 |
10.11 |
10.00 |
10.33 |
23 |
4 |
10.28 |
10.25 |
10.29 |
24 |
4 |
10.54 |
10.25 |
10.75 |
25 |
12 |
10.61 |
10.50 |
11.13 |
26 |
8 |
10.74 |
10.54 |
10.83 |
27 |
5 |
10.81 |
10.54 |
11.00 |
28 |
8 |
11.38 |
11.00 |
11.75 |
29 |
2 |
11.75 |
11.71 |
11.79 |
30 |
7 |
11.77 |
11.33 |
12.67 |
31 |
3 |
12.21 |
11.50 |
12.75 |
32 |
3 |
13.44 |
13.38 |
13.50 |
33 |
3 |
13.78 |
13.50 |
14.25 |