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International Journal of Morphology

On-line version ISSN 0717-9502


XIE, Zhaohui; LI, Jingting  and  CHENG, Pu. Characteristics of the Gustatory Organs on the Tongue of the Chinese Fire-bellied Newt (Cynops orientalis): Light and Scanning Electron Microscopy Study. Int. J. Morphol. [online]. 2014, vol.32, n.3, pp.930-934. ISSN 0717-9502.

The dorsal surface of the tongue gustatory organs of Chinese fire-bellied newt (Cynops orientalis) was observed by employing the light and scanning electron microscopy (SEM) techniques. The results revealed that the rostral and median part of the tongue presents a round apex and covered by taste disks (TDs). They are usually roundish or ellipsoidal in shape and are 20-35 mm in diameter. The many openings of the lingual glands are 4-8 mm in diameter exist in the lateral border or median part of lingual body. The gustatory organs on the tongue did not differed form those presented in other species in Caudates. These may indicate the functions of gustatory organs on the tongue related to their life habit.

Keywords : Tongue; Lingual epithelium; Histology; Taste disks; Caudates.

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