A'ATAWV iisiii:s 



(iii 



CORRIDOR OF CENTRAL PAVILION 



HkCKNT KlSHKS 



The t>\hil)it of tislics (K'('Uj)i('s the ('enter of the north end of the hall 

 of the birds of the world and the corridor hevond the dooi' leadinti to 

 the «2;alltM-y of the Auditorium. 



The exhibit inehides tyj^ical exanii)les of tlie various ^r()ui)s of back- 

 boned animals ])oi)uhirly eoni])rised in the term "fishes," and is arran<ie(l 

 in projiressive order. The visitor shouUl first examine the case of ha^;- 

 fishes and hnn])reys facing the lar^e window, near the end of the corri- 

 dor. These rank anion^;- the most primitive ^'fishes." They are with- 



A PORTION OF THE PADDLEFISH GROUP 



out scales, without true teeth, without paired hmbs, and their backbone 

 consists of but a rod of cartilage. One of the models shows the way 



in which a new^ly caught hag-fish secretes slime, forming 



og- s es around it a great mass of ]e\\y. In the same case are 



Lampreys lampreys, and one of them is represented attached to a 



fish, which it fatally wounds. The nest-building habit 

 of lampreys is illustrated in a neighboring floor case : here the spawiiers 

 are preparing a pit-like nest and carrying away stones, which they seize 

 with their sucker-hke mouths. 



The visitor should next inspect the cases of sharks which are situ- 

 ated on the south side of the corridor. These include various forms of 



sharks and rays, selected as typical members of this 



ancient group — for the sharks have numerous characters 

 which put them in the ancestral line of all the other groups of fishes. 



Sharks 



