TADPOLES. Ill 



The tadpoles are represented, of the natural size, 

 on Pis. I, II, and III. The mouth (a) is enlarged 

 five diameters in figs. 1 and 2, PL II; seven diameters 

 in fig. 4, PI. I ; fifteen diameters in figs. 3 and 5, 

 PI. II, and fig. 1, PL I; ten diameters in the rest. 



PLATE I. 



Fig. 1. Discoglossus pidus. Montecristo. 

 ,, 2. Bombinator igneus. Seeland, Denmark. 

 ,, 3. — fcicliypus. Mondorf, Luxem- 



burg. 

 ,, 4. Alytes obstetricans. St. Germain, near Paris. 

 ,,6. — — var. hoscse. Sierra Es- 



trella. 

 ,, 6. — cisternasii. Sierra Morena. 

 ,, 7, 8. Pelodyies pundatus. Near St. Malo. 



PLATE 11. 



Fig. 1. Pelobates fuscus. Prague. 

 ,,2. — cultripes. Near Bordeaux. 

 „ 3. Bufo vulgaris. Near London. 

 ,, 4. — • viridis. Breslau. 

 ,, 5. — calamita. Near St. Malo. 

 „ 6, 7 . Hyla arhorea. Near St._ Malo. _ 



8. — — var. meridionalis. Near 



Nice. 



PLATE III. 



Bana escuUnta. Near St. Malo. 



— arvalis. Breslau. 



— temporaria. Near London. 



— grseca. Parnassos. 



— iberica. Coimbra. 



— laiastii. Italy. 



— agilis. Near St. Malo. 



