ROOM IX.] NATURAL HISTORY. 25 
Case 5. Arachnida; as Tarantulae, Scorpions, Pha- 
langia, and Acari, or Mites;—Myriapoda, as Scolopen- 
drse and luli. Also several mandibulated insects, such as 
Beetles, Dragon Flies, Wasps, and Ants; shewing their 
metamorphoses, or the changes they undergo in passing 
from the larva to the perfect state. Amongst them is the 
large American Prionus, and specimens of the White Ants 
( Terjnes fat alts y and bellicostisy, in different states, of which 
an interesting account is given by Mr. Smeathmann, in the 
seventy-first volume of the Philosophical Transactions. 
Case 6. The Larvae and Pupae of Haustellated in¬ 
sects, or those which in their perfect state live by suction ; 
as Butterflies, Moths, Flies, &c.; amongst which are 
several curious larvae of exotic Butterflies, variously armed 
with spines, &c. ; and on the two lower shelves are a col¬ 
lection of Cirrhipedes, or the animals which inhabit the 
Acorn Shell and Barnacles, preserved in spirits. 
Case 7 contains the 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 the Mollusca in spirits, as va¬ 
rious kinds of Cephalopodous Mollusca, the Cuttle Fish, 
©r 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 Hyalsea, 
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 ^valk 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, 
6 
