Hovzxz. — Cephalopoda, 
PLATE 3. 
Figs. 1-4. Stauroteuthis hippocrepium, sp. n. 
1. Side view of the internal cartilage; X $. 
2. Sketch of dorsal aspect, after removal of the integument, showing the 
relative positions of the cartilage and the fin; X 3. 
3. Proximal end of the fin showing the hollow for articulation with the 
side of the cartilage; X 2. 
4. Portion óf the third arm on the right side, showing the cartilaginous 
nodule at the attachment of the margin of the web to the ventral aspect 
of the arm; X $. 
Fig. 5. Froekenia clara, sp. n. 
Sketch showing the form of the cartilage and the form and attachment 
of the fin; magnified rather more than 2 diameters. 
Figs. 6-11. Bolitaena microcot la. 
6. Dorsal aspect, from a photograph; X 2. 
7. Outline sketch of the same; the reference letters point to the tips 
of the arms on the right and left sides respectively. 
8. Ventral aspect, from a photograph; X 2. 
9. Outline sketch of the same, showing S, siphon; M, mantle-opening ; 
3 R, tip of the third arm on the right side. 
10. Outline sketch from the right side; S, aperture of the siphon; Æ, 
eye; D, position of the buccal mass; M, mantle-opening ; 7-7 V, the arms 
of the right side. 
11. Ventral aspect showing the funnel and the right side of the mantle- 
cavity laid open; X 4. 
