Origin of Species Variorum

→ generally 1860 1861 1866 1869

always be somewhat rare; for beings thus provided will commonly 1872

→ and developed condition, and consequently will not now exist. 1866

and developed condition. 1860 1861

state, and consequently will have become long ago extinct. 1869 1872

→ on the other hand, is quite 1866 1869 1872

is 1860 1861

↑ 1 blocks not present in 1859 1860 1861 1866 1869; present in 1872

Owen considers the simple filamentary limbs of the Lepidosiren as the "beginnings of organs which attain full functional development in higher vertebrates;" but, according to the view lately advocated by Dr. Günther, they are probably remnants, consisting of the persistent axis of a fin, with the lateral rays or branches aborted.

→ those of the 1866

the udder of a 1860 1861

the udders of a 1869 1872

→ are only slightly developed and which 1860 1861 1866 1869

OMIT 1872

→ are 1860 1861 1866 1869

and are feebly developed, are 1872

→ in the individuals of the same species 1860 1861 1866 1872

OMIT 1869

→ degree of 1860 1861 1866

the degree of their 1872

OMIT 1869

→ respects. 1860 1861 1866 1872

respects in the individuals of the same species. 1869

→ the degree 1860 1861 1866 1869

also, the extent 1872

→ in certain groups. 1859 1860 1861 1866 1869

belonging to the same family. 1872

→ we find in an 1859 1860 1861 1866

in certain 1869 1872

→ no trace of an organ, 1859 1860 1861 1866

parts are entirely absent 1869 1872

→ and which is 1859 1860 1861 1866

and which are 1869

in them, and which are 1872

→ some Scrophulariaceæ we rarely find even a rudiment of a 1866

the snapdragon (antirrhinum) we generally do not find a rudiment of a 1859 1860 1861

most of the Scrophulariaceæ the 1869 1872

→ but this may sometimes 1859 1860 1861 1866

is utterly aborted; yet we may conclude that a fifth stamen once existed, for a rudiment of it is found in many species of the family, and this rudiment occasionally becomes perfectly developed, as may 1869

→ seen plainly or fully developed. 1866

seen. 1859 1860 1861

seen in the common snap-dragon. 1869 1872

condition will →generally have been supplanted

and exterminated

....

by their successors with the

organ

same organ

in a more perfect →and developed condition, and consequently will not now exist. The wing of the penguin is of high service,

and acts

acting

as a fin; it may, therefore, represent the nascent state of the

wings

wing;

of birds;

....

not that I believe this to be the

case,

case;

it is more probably a reduced organ, modified for a new

function;

function:

the wing of the

Apteryx

Apteryx,

→on the other hand, is quite useless, and is truly rudimentary. The simple filamentary limbs of the Lepidosiren apparently are in a nascent state; for, as Owen has

remarked,

recently remarked,

they are the "beginnings of organs which attain full functional development in higher vertebrates." ↑ The mammary

glans

glands

of the

Ornitho-rhynchus

Ornithorhynchus

may

may,

perhaps,

~~probably,~~

probably,

be considered, in comparison with →those of the cow, as in a nascent

state.

condition.

The ovigerous frena of certain cirripedes, which →are only slightly developed and which have ceased to give attachment to the

ova

ova,

→are nascent branchiæ. Rudimentary organs →in the individuals of the same species are very liable to vary in →degree of development and in other →respects.

Moreover, in

closely allied species, →the degree to which the same organ has been

reduced

rendered rudimentary

occasionally differs much. This latter fact is well exemplified in the state of the wings

of the