4:2 Records of the Indian Museum. [Vol. XV, 



7. Spiracle an inconspicuous transparent tube, not 



nicked. Body perfectly transparent, with a 

 horseshoe-shaped mark on the head . . K. triangularis. 



8. Spiracle almost forms a sheath for the root of 



the anal tube. Body densely pigmented . K. pulchra. 



9. Spiracle not forming a sheath for the anal tube : 



length of body more than one and a half 



times the width K. obscura.^ 



C. Tip of tail obtusely rounded. Tail lobes delicate and 

 at greatest depth individually three-fourths of the 

 muscular portion ...... Cucopus. 



10. Spiracle a conical tube opening almost iuter- 

 femorally. Body and muscular part of tail 

 densely pigmented . . . . . C. systoma. 



Microhyla rubra (Jerd). 

 Larva. 



1904. Ferguson, Joiini. Bombay Nat. Hist. Soc, Vol. XV, p. 506. 



1915. Narayan Rao, Eec. Ind. Mus., Vol. XI, p. 31. 

 1917. Narayan Rao, Rec. Ind. Mus., Vol. XIII, p. 282. 



1 have shown that Mr. Ferguson has mixed up these larvae with those 

 ©f M. ornata. 



Microhyla ornata. (Dum and Bibrou). 



Laeva. 



1899. Flower, Proc. Zool. Soc. London, p. 902. 



1903-1904. Ferguson, Journ. Bombay Nat. Hist. Soc, Vol. XV, p. 500. 

 1903-1904. Butler, Journ. Bombay Nat. Hist. Soc, Vol. XV, p. 387. 

 1917. Narayan Rao, Rec. Ind. Mus., Vol. XIII, p. 282. 



Butler remarks " the tadpoles of this and other species of Microhyla 

 are very peculiar, being almost perfectly transparent, with the viscera 

 showing through conspicuously." The larvae of M. ornata have an 

 opaque reflecting tissue on the sides and the only organ that shows 

 through is the heart. Further down he observes " owing to their extra- 

 ordinary delicacy I never managed to keep them alive." In my aqua- 

 rium they thrive quite as well as any of the hardiest of the Ranid larvae. 



Microhyla achatina (Boie). 

 Larva. 



1916. Smith, Journ. Nat. Hist. Soc. Siam, Vol. II, p. 37. 



1917. Annandale, Mem. As. Soc. Bengal, Vol. VI, p. 150. 



The modification of the lower lip into a float-like structure resembling 

 that met with in certain species of Megalophrys is an interesting fact. 



? Microhyla berdmorei, Blyth. 

 Larva. 



1899. Flower, Proc Zool. Soc London, p. 902. 



1917. Annandale, Mem. As. Soc Bengal, Vol. VI, p. 151. 



Dr. N. Annandale^ has shown that the ' transparent larvae ' 

 described by Flower are probably those of M. herdmorei. 



^ I have not had an opportunity to examine the larva and have had to rely on the 

 description of Ferguson (op. cit., p. 506). 



2 Mem. As. Soc Bengal, VI, p. 151 (1917). 



