26 NATURAL HISTORY. [UPPER FLOOR. 
an animal which never voluntarily approaches the light 
of day, and whose very small eyes are so hidden by the 
skin, that it appears to be absolutely destitute of those organs. 
A wax model, from a living healthy specimen of this ani¬ 
mal, is placed near it, to show the form of its lungs when 
not contracted by immersion in spirits of wine. The Caro¬ 
lina Siren, first described by Ellis, which has only two 
short feet in front; and lastly the Ccecilia , or blind Worm, 
whose eyes, always very small, and nearly concealed under 
the skin, are sometimes wholly wanting. 
Case 4 contains specimens of Crustacea , as Crabs, Lob¬ 
sters, and Woodlice, in spirits; and on the lower shelf is a 
collection of Cirripedes , or the animals which inhabit the 
Acorn Shell and Barnacles, preserved in spirits. 
Cases 5 and 6 contain specimens of Wood pierced with 
Termites; the larvae of Coleopterous and Hymenopterous 
insects, as Cerambyces, Wasps, and Tree Ants. The nests 
of different species of Wasps and Bees. 
Case 7 contains Mammalia in spirits, as Bats, Shrew 
Mice, Opossums, and some very young specimens of larger 
animals. 
Case 8 contains a series of Annelides, including Sea 
Worms, Lob Worms, Leeches, Planariae, 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 
