Fouisom. — Development Anurida 
Bigs bt 
Fig. 12. 
Fig. 18. 
Fig. 14. 
Fig 15. 
Fig. 16. 
Fig. 17. 
Fig. 18. 
Fig. 19. 
Fig. 20. 
Fig. 21. 
Fig. 22, 
PLATE 3. 
Ventral aspect of cephalic region of germ band at Stage 3. 480. 
Ventral aspect of cephalic region of germ band at Stage 4. 480. 
Sagittal section of labrum at Stage 3. X 762. 
Transection of germ band at the labial segment in Stage 3. X 762. 
Transection of germ band at the first maxillary segmentin Stage 3. X 762. 
Transection of germ band at the mandibular segment in Stage 3. X 762. 
Posterior aspect of left first maxilla at Stage 3. x 480. 
Posterior aspect of left second maxilla at Stage 3. X 480. 
Left aspect of germ band at Stage 4. > 480. 
Left aspect of cephalic region at Stage 5. > 480. 
Ventral aspect of cephalic region at Stage 5. » 480. 
Posterior aspect of left first maxilla at Stage 5. X 480. 
The last three figures are from the same preparation. 
