I'lalfi V. 



(Kor letters see List p. .'ilU |!t8|.) 



Figs. 1 — 5: Siphonosioma tijphle. 



Fig. 1 : Sliull from above (magnified), c : snout-cartilage. 



— 2 : Tlie same from below. 

 - 3 : Skull from Ijehind. 



— 4: Head skeleton from left side. Entopterygoid (ept) aiul preorbitals (ao' ao) are removed a little 



from contact with the cranial beak. 



— 5: Mouth-parts, suspensory and opercular parts and h void from right side, inner aspect. I: liga- 



ment between symplectic (sj') and styloliya): li: ligament between angular (an) and inter- 

 operculum (io); li': ligament between interoperculum and liyoid |h|. Througli the trans- 

 parent interoperculnm (io) the skeletal parts covered In' the lattci- are visible. 



Figs. 6 — 7 : Hippocampus brevirostris. 



Fig. (i: Skull from left side. *; groove for attachment of nuchal tendon; p: branch of posttemporal (pt) 

 connecting with exoccipital (eo). 



— 7: Suspensory parts and preorbitals from left side, outer aspect. 



Fig. 8 : Phifllopteryx foliatiis. 

 Fig. 8: Head-skeleton from left side, g: gill-opening; h: hjoid ; u: urohyal. 



Fig. 9: Nerophis ophidion. 



Fig. i): Head-skeleton from right side, n': preuuchale; t; ossified tendon of nuchal muscles; x: dermal 

 plates. 



Fig. 10: Nerophis œquoreus. 



Fig. 10: Head-skeleton fi-om right side, x: as in the preceding figure; h: lij'oid ; u: urohyal. 



