65 
Nautilacea, Ammonaea, Argonautea, and Se- 
piaria. Many of the genera of these families, the 
greater number of which are fossil shells, are 
wanting. Amongst those in this compartment, 
are Belemnites, Spirula, Miliolites, Rotalites, 
Discorbites, Nummulitesj some fine specimens 
of the Nautilus, Ammonites, Orbulites, Baccu- 
lites, and several of the elegant genus Argo- 
nauta, or paper Nautilus. The Loligo, and Se¬ 
pia, or Cuttle, are the last genera of this order. 
Order 5. Heteropoda, consists ofoake d Mol- 
lusca, or such as have no shell, except the genus 
Carinaria, of which Lamarck enumerates three 
species; C. vitrea, C. fragilis, and C. cymbium. 
An unique shell of the first species, is preserved 
in the Museum at Paris, of which there is a mo¬ 
del, in wax, in this compartment. The original 
was brought by M. Huon, one of the Officers, 
sent in search of La Peyrouse, from the South 
Seas. This singular shell is suspended below the 
belly of the animal, and seems destined to cover 
and protect the heart and branchiae. 
Table 31. Miscellaneous. A dissected Nau¬ 
tilus, shewing the interior chambers of the 
shell \ one valve of a large Meleagrina margariti- 
fera, or pearl muscle—various specimens of 
pearls, which are produced by disease in shells; 
two pair, and a single valve, of extraordinary 
size, of the Pinnasquamata ; the byssus, orbeard 
of the pinna, and a pair of gloves, made of the 
f same 
ROOM VIII. 
Nat. Hist. 
