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Skin Structure of Larval and Adult Ichthyophis bannanicus

Skin Structure of Larval and Adult Ichthyophis bannanicus

Sichuan Journal of Zoology 30.4 (July 28): 573-577

The morphological and histological observation on the skin of larval and adult Ichthyophis bannanicus, which is endemic and endangered amphibian in China was studied by optical and scanning electron microscope. The results showed that both the skin of larval I. bannanicus and that of adult were composed of epidermis, dermis osteoporosis layer and dermal dense layer. There were mucus glands and particle glands in the skin. The various components of its skin were different in structure and thickness in both different development stages and different parts of the same individual. The head skin of the adult and the larva were the thickest, and the tail skins were the thinnest. The cell differentiation in all layers of larval skin was not obvious and there is no keratinization. The cell differentiation in adult skin was clear and the keratinization also was found. In the adult, the skin of the trunk was the thickest and the tail was the thinnest, in the larva the position was reverse. There were plenty of mucus glands, and few granular glands in the head skin of the larva and the adult. Many granular glands distributed in the trunk of the larva, and no mucus glands but granular glands existed in the tail. There were plenty of particle glands and mucus glands in the trunk and tail of the adult.

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Accession: 037468357

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