FISH GALLERY. 
47 
fig. 21, which attaches itself by the 
sucker on the top of its head to the 
bodies of fishes or turtles, or to tlie 
bottoDi of ships. 
The eastern or left side of the room 
is devoted to the exhibition of very diffe- 
rent types of fishes, which w^ere much 
more numerously represented in ancient 
times than at present. The majority 
have a cartilaginous skeleton. Among 
these may be specially mentioned the 
Bichir of the tropical African rivers, 
the Gar-Pike of North America, the 
Lung-Fishes {Dipnoi) of South America, 
Africa, and Australia, the Sturgeons, 
and finally the Sharks and Rays. The 
latter include the singular Hammer- 
headed Shark {Zygcena), and the Saw- 
Fisher (Pristis), which has a long 
projecting flattened snout, with a row 
of teeth arranged something like those 
of a saw on each side (fig. 22). 
remarkably large specimen from the 
coast of British Guiana of a species 
of this group (Pristis iKvrotteti) is 
exhibited. Another very small division 
Fig. 22. — Lo«er View of 
Head of a Saw-Fi.sh. 
( Fr idis ant i quorum.) 
Fig. 23. — Basking Shark (Selache maxima). 
of fishes comprises the Lampreys and Hags, of which a few 
j specimens are show^n. 
