| APPEARANCE PATTERN OF TOOTH GERMS WITH DEVELOPMENTAL PROCESS IN MYLOPHARYNGODON PICEUS |
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| 作者姓名： | 乐佩琦 |
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| 作者单位： | YUE Pei-qi(Institute of Hydrobiology，Chinese Academy of Sciences，Wuhan 430072)Nakajima Tsuneo(Lake Biwa Museum Project Office，Otsu，Shiga Prefecture，520，Japan) |
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| 基金项目： | This project was funded by the International Cooperation of japan-China，the National Natural Science Foundation of China |
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| 摘 要： | The pharyngeal dental formula of Mylopharyngodon piceus is 4-5 as a rule, and the dentition isasymmetrical. It is difficult to identify each tooth in the larval dentition. In this paper the appearancepattem of tooth germ with developmental process in this fish is described in detail. The formationpattern of the left dentition is contrasted with that of the right one. In the developmental process,the left pharyngeal dentition lacks teeth at position An3. Thus the left dentition is D-type as designatedby Nakajima(1984), while the right one is A-type.
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APPEARANCE PATTERN OF TOOTH GERMS WITH DEVE-LOPMENTAL PROCESS IN MYLOPHARYNGODON PICEUS |
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| YUE Pei-qi.APPEARANCE PATTERN OF TOOTH GERMS WITH DEVELOPMENTAL PROCESS IN MYLOPHARYNGODON PICEUS[J].Chinese Journal of Oceanology and Limnology,1995(2). |
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| Authors: | YUE Pei-qi |
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| Abstract: | The pharyngeal dental formula of Mylopharyngodon piceus is 4-5 as a rule, and the dentition is asymmetrical. It is difficult to identify each tooth in the larval dentition. In this paper the appearance pattern of tooth germ with developmental process in this fish is described in detail. The formation pattern of the left dentition is contrasted with that of the right one. In the developmental process, the left pharyngeal dentition lacks teeth at position An3, Thus the left dentition is D-type as designated by Nakajima (1984), while the right one is A-type. |
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| Keywords: | Mylopharyngodon piceus appearance pattern of teeth tooth germs developmental process |
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