358 MR. THOMPSON ON THE METAMORPHOSIS OF THE CIRRIPEDES. 



PLATE V. 



Fig. 1 . Lepas amerifera, opened from behind to show the first stage of the leaf-like 

 conceptacles of the ova (m). 



a. Animal. 



o. Ovipositor. 



V. Valves, 



p. Pedicle. 

 Fig. 2. Another individual, showing the conceptacles in an advanced stage, the 



right conceptacle being turned back (m). 

 Fig. 3. A portion of the conceptacle magnified. 

 Fig. 4. An ovum ready to hatch. 



Fig. 5. Fully developed larva of Lepas anserifera, viewed in front, highly magnified. 

 Fig. 6. Larva of Cineras vittatus, just excluded from the ovum. 

 Fig. 7. The same more developed. 



Fig. 8. The fully developed larva of the same, viewed in front and highly mag- 

 nified. 



