NATURAL SYSTEMS. — MACLEAY. 208 
as belonging to the natural system. We shall now 
copy his diagram, or table of the animal kingdom, and 
then endeavour, with this help, to explain the system 
more in detail. 
MOLLUSCA 
Pteropoda , 
\ Acephala 
y® r Branchiopoda 
fre ‘Vaginati \ P 
ry” ACRITA nee 
\ 
VERTEBRATA 
bear caoal 
l\. P. natantes / Amphibia 
/ See ae roe 
rH Fistulida Ametabola 
AS Nt, 
Agastria 
“Mopsury equjatay a3 yO sBuseq 
pesiuedig Asyor i 
> / rcalepl; 
BS Acalephide Mandibulata\ ey, 
ES RADIATA | ANNULOSA ©, 
re Echinide Crustaces 
ry Medusid» J Haustellata 
Stellerids <a Arachnid 
A 
ce 
a 
(e4 
_ 
oO 
(259.) We must, in the first instance, look to the 
above tabular disposition of all animals, as forming them- 
selves collectively into one great circle, which circle 
touches or blends into another, composed of plants, by 
means of the “ least organised beings of the vegetable 
kingdom.” Next we are to look to the larger component 
parts of this great circular assemblage. We find it, in 
accordance with the third proposition, to exhibit five 
great circles, composed of the Moruusca, or shell-fish ; 
AcrirA, or polypes ; Raprara, or star-fish ; ANNULOSA, 
or insects; and VerTEBRATA, or vertebrated animals ; 
each passing or blending into each other, by means of 
five other groups of animals, much smaller, indeed, 
their extent, but forming so many connecting or osculant 
circles. The number, therefore, as many erroneously 
suppose, is not five, but ten. This is quite obvious ; 
