カタクチイワシの舌弓と鰓弓の骨格形成〔英文〕
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概要
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Osteological development of the hyobranchial apparatus was described from a series of 18 cleared and stained specimens of Engraulis japonicus. First cartilaginous structures to form are cerato-epihyal in the hyoid bar (2.62mm SL) and ceratobranchials in branchial skeleton (4.89mm SL). Supporting structures of epibranchial organ, that is epibranchial 4 and 5, show common origin from 4th arch and ultimately separate through ossification of epibranchial 4. Development of five basibranchial cartilages as well as cartilaginous hypobranchial 4 are transient characters exhibited during the larval stage. Branchiostegal rays develop by 15.00mm SL although adult complement is reached consistently by 32.00mm SL. Gill rakers appear first on ceratobranchials (10.50mm SL) and finally on infrapharyngobranchials and epibranchial organ.
- 社団法人 日本水産学会の論文