, Volume 89, Issue 2, pp 127-131

Development of mouthparts in the tadpoles ofRana tigrina Daud

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Abstract

The morphology of the mouthparts ofRana tigrina tadpoles is studied. The development starts after hatching with distinct mouth opening and is followed by paired beaks and labial fringes. The horny teeth then start differentiating in both the labial fringes and by addition of successive rows of teeth the full complement of larval dentition is developed. The mouthparts persist upto stage 50 and by stage 51 both the beaks and teeth are shed and the labial fringes are considerably resorbed.

This paper was presented in the 4th All India Congress of Zoology held at Magadh University, Bodh Gaya, October, 1978.