the eggs had hatched. Of the seven remaining eggs one was a winter egg, three were dead parthenogenetic eggs and the other three contained living embryos which were apparently unable to break through the egg envelope. March 14, at 8:qo p.m., twenty eggs were isolated and allowed to remain undisturb
Observations on the maturation stages of the parthenogenetic and sexual eggs of Hydatina senta
β Scribed by Whitney, David Day
- Publisher
- John Wiley and Sons
- Year
- 1909
- Tongue
- English
- Weight
- 451 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0022-104X
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