Origin of Species Variorum

→ would probably be 1869

and especially that of the first larval stage, would probably have been 1866

of the new class would be 1872

→ it now is; and 1869

is actually the case; and it should be especially noted that 1866

of our existing insects; and 1872

→ certainly would not 1869 1872

would not have 1866

→ adult and ancient insect. 1869

insect. 1866

adult and ancient form. 1872

→ OMIT 1869 1872

ancient and adult 1866

→ group in its adult condition. 1869

group. 1866

group in its adult state. 1872

→ at first as larvæ under the 1869 1872

in their first larval state under a similar 1866

→ an 1866 1869

at some very remote period an 1872

→ at some very remote period, and 1869

at a remote period, and has 1866

and 1872

→ OMIT 1869 1872

through long-continued modification 1866

→ these animals 1869 1872

all the members in these four great classes 1866

→ can be arranged within a few great classes; 1869 1872

on this earth have to be classed together, 1859 1860 1861

on this earth, have to be classed together, 1866

→ within each class have, according to our theory, formerly 1869

have 1859 1860 1861 1866

within each class have, according to our theory, 1872

→ together by fine 1869 1872

by the finest 1859 1860

by fine 1861 1866

→ OMIT 1869 1872

on my view 1859 1860 1861

on this view 1866

→would probably be widely different from

that

what

→it now is; and the first larval stage →certainly would not

represented

represent

the

adult

former

condition of any →adult and ancient insect.

On the other hand it is

probable

highly probable

that with many

groups of

....

animals the

earlier

embryonic or

larval stages

....

show us, more or less completely, the

form

condition

state

of the →OMIT progenitor of the whole →group in its adult condition. In the

enormous

great

class of the Crustacea, forms wonderfully distinct from each other,

as the

namely,

suctorial parasites, cirripedes, entomostraca, and even the malacostraca, appear →at first as larvæ under the

nauplius form;

nauplius-form;

and as these larvæ

live

feed

and

feed

live

in the open sea, and are not adapted for any peculiar habits of life, and from other reasons assigned by Fritz

Müller,

it is probable that →an independent adult animal, resembling the

Nauplius,

nauplius,

formerly

....

existed,

existed

→at some very remote period, and subsequently produced, →OMIT along several divergent lines of descent, the

~~several~~

several

above-named great Crustacean groups. So again it is probable, from what we know of the embryos of mammals, birds, fishes, and reptiles, that →these animals are the modified descendants of some

~~one~~

one

ancient progenitor, which was furnished in its adult state with branchiæ,

had

....

a swim-bladder, four

fin-like

simple

limbs, and a long

tail

tail,

fitted

all fitted

for an aquatic life.

As all the organic beings, extinct and recent, which have ever

lived

lived,

→can be arranged within a few great classes; and as all →within each class have, according to our theory, formerly been connected →together by fine gradations, the best,

or indeed,

or,

and,

if our collections were nearly perfect, the only possible arrangement, would be

genealogical.

genealogical;

Descent

descent

being →OMIT the hidden bond of connexion which naturalists have been seeking under the term of the

natural

Natural

system.

System.

On this view we can understand how it is that, in the eyes of most

naturalists,

natu- ralists,