ROOM IX.] NATURAL HISTORY. 23 
Worms, Lob Worms, Leeches, Planarise, and other kinds of 
Worms, in spirits. 
Cases 9—12 contain Mollusca in spirits, as various 
kinds of Cephalopodous Mollusca, the Cuttle Fish, 
or Sepia, the animal which affords the pigment so called ; 
Octopus, and other genera of the order, as Cranchia, and the 
Ocythoe; the latter is often found in the Paper Nautilus, and 
thought by some to be its original inhabitant. Here also 
are the Pteropodous Mollusca, or those whose wing-shaped 
feet are on the side of their head, as the genera Hyalaea, 
Cleodora, Clio, Cymbulia, and Limacina. Likewise 
Heteropodous Mollusca, as the animals of the Cari- 
naria, and Pterotrachea; and some of the Gasteropo- 
dous Mollusca, which walk on a flat expanded disk, in¬ 
cluding the Slugs, and the animals which inhabit spiral 
shells. 
Cases 10 and 11 contain the continuation of the Gaste- 
ropodous Mollusca. 
Case 12. The animals of Bivalve Shells, shewing the 
various forms which obtain in the different genera. Those 
of the Pearl Oyster, from the Island of St. Christopher, 
with some large pearls imbedded in their bodies, deserve 
particular attention. On the lower shelves are the tuni- 
cated animals, as the genera Biphora , Ascidia, &c. 
In Case 13 are Radiated animals preserved in spirits, 
as Sea Wigs ( Comatula ), Sea Stars, or Star Fish ( Aste - 
rias), and Medusa’s Head ( Alecto ), with their finely 
divided arms, with which they filter the water, to separate 
the small mollusca on which they feed. The Lizard-tailed 
Star Fish ( Ophiura ), which attach themselves to coral 
by their flexible arms; the Sea Eggs {Echinus), and 
Sea Hearts ( Spatangus ), the Sea Lemons, Sea Cucum¬ 
bers ( Holothuria ), some of which are much sought after 
by the Chinese, as delicacies ; and lastly, the genus Si - 
phunculus . 
Case 14 contains the soft radiated animals, as Medusae, 
Physaliae, Velellse, and Actiniae, and the animals of va¬ 
rious kinds of Sea Pens, Corals, and Corallines, and also 
some Coralloid plants, preserved in spirits. 
Cases 15 and 16, between the windows, contain some 
preserved Saurian and Ophidian Reptiles and Amphibia; 
as several species of Monitors; the Guana, used as food 
