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HALL 24. 
SPONGES JELLY FISH CORALS ETC. 
In this hall are exhibited materials illustrating the branches 
of the animal kingdom known as the Protozoa (the one-celled 
animals), the Coelenterata f Sponges and Corals), and the 
Echinodermata (Crinoids, Starfishes, Sea-Urchins and Sea Cu- 
cumbers). 
CASE 1.— Contains on one side the Protozoa, mostly ani- 
mals of microscopic size. These are illustrated by models rep- 
resenting them magnified about 2,300 times. Next in order are 
the Porifera or Sponges. These include some interesting forms 
such as Neptune’s cup, the Glass-rope sponge, Venus’ flower 
basket, etc. On the other side of the case are the Millepores, 
and Stylasters, and models representing the Jelly-fishes — such 
as the Portuguese Man of War. 
CASE 2. — Contains representatives of the Alcyonaria 
(Eight rayed Polyps). This group contains the Sea-fans, Sea- 
feathers, Organ-pipe Coral and Red Coral. These are con- 
tinued in Case 3. 
CASES 3, 4, 5 and 6. — Contain the Zoantharia, which in- 
cludes the Sea-whips, the Sea Anemones and the Stony corals. 
At the end of Case 6 are a few models representing the Cteno- 
phora or Comb-bearing Jelly-fishes. 
CASE 7. — Contains part of the Echinodermata, which in- 
cludes the Crinoidea (Sea Lilies, etc.); the Ophiuroidea (Brit- 
tle stars and Basket stars) and part of the Asteroidea (Star 
fishes). 
CASE 8. — Contains the remainder of the Star-fishes, and a 
portion of the Echini (Sea-Urchins). 
CASE 9. — In this case are specimens of Sea Urchins, Holo- 
thuria (Sea Cucumbers), and the Vermes (Worms). 
HALL 25. 
INSECTS, CRUSTACEANS AND MOLLU5KS 
CASE 1. — Collection of Crustaceans. The glass models 
show several stages in the development of the Lobster. In the 
south end are a few Cephalopods. 
