Plate 47. 



1-12. Phormosoma hispidum A. Ag. 



1. Lantern seen from above. 



2. The same as fig. 1, seen in profile. 



3. One of the pyramids, seen from the exterior. 



4. The same as fig. 3, seen from the interior. 



5. Tlie same, seen in profile. 



6. Tlie same, seen from above. 



7 a. Epiphysis of pyramid, from the interior. 



7 b. Pyramid, in profile, from the interior. 



8 a. Epiphysis of pyramid, from the outside. 



8 b. Epiphysis of pyramid, in profile. 



9 a. Groove of tooth ; b, back of tooth ; c, tooth seen in profile. 



10. Upper part of tooth. 



1 1 . The same as fig. 10, seen in profile. 



12 a. The brace, seen from above ; b, seen in profile ; c, from below; d, endwise. 



