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, PI. II ; seven diameters 

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

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



PLATE I. 



Fig. 1. Discoglossus pictas. Montecristo. 



2. Bomblnator igneus. Seeland, Deumark. 



3. — pachypus. Mondorf, Luxem- 

 burg. 



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



5. — — var. boscse. Sierra Es- 



trella. 



6. — cisternasii. Sierra Morena. 



7. 8. Pelodijles punctatiis. Near St. Malo. 



PLATE II. 



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 arborea. Near St. Malo. 

 ,,8. — — var. meridio nails. Near 



Nice. 



PLATE III. 



Fig. 1 . Bana esculenta. Near St. Malo. 



,, 2. — arvalis. Breslau. 



,, 3. — temporaria. Near London. 



,, 4. — grseca. Parnassos. 



,, 5. — iberica. Coimbra. 



,, 6. — latastli. Italy. 



,, 7. — agilis. Near St. Malo. 



