TY  - SER
AU  - Yamamoto,T.S.
AU  - Kobayashi,W.
TI  - Closure of the micropyle during embryonic development of some pelagic fish eggs
KW  - Eggs
KW  - Ultrastructure
N1  - Yamamoto, T. S.-Zoological Institute, Faculty of Science, Hokkaido University, Sapporo 060, Japan
ER  -