Decapodernes Forvandlinger. 195 



Fig. 16. Another ovum, the chorion of which has been 

 removed, with the embryo considerably more 

 advanced, although by far not yet ready to be 

 hatched; lateral view. X 22. 

 Fig. 17. The same ovum; ventral view. X 22. 



« 18. First antenna of the embryo, isolated. X 35. 



« 19. Second antenna. X 35. 



« 20. Oral area, showing the anterior and posterior 

 lip, the mandibles and the two maxillæ on the 

 left side in situ; ventral view, X 35. 



« 21. Left mandible, isolated. X 47. 



« 22. Firt maxilla. X 47. 



« 23. Second maxilla. X 47. 



« 24. First maxilliped. X 47. 



« 25. Second maxilliped. X 47. 



« 26. Third maxilliped. X 47. 



« 27. Pedal plate, containing the developping legs, 

 viewed from the anterior face. X 47. 



« 28. Extremity of tail, with the caudal plate. X 35. 



« 29. Y o ung Sclerocrangon boreas ; lateral view. X 1Q- 



« 30. The same; dorsal view. X 10- 



« 31. Extremity of telson of the same specimen; dorsal 

 view. X 26. 



