,
ON ZOOPHYTES AND JELLY—FISHES.
9
.
'
'
show the ever ready resources of nature in restoring losses
spreading useful forms on every suitable site. Thoùgh it were
possible in a given area to remove every vestige of such a form ' '
-
from the sea—bottom, a single summer tide would carry a
sufciency of little ripe jelly—shes (Eydy‘077æêduä‘œ) to repeople
The countlessswarms of these graceful and beautiful glassy
créatures, which stretch for miles round ourshores and far
beyond'int0 the open ocean, is one of the most striking features
in marine life.
From the eggs
of theSe swimming jelly—shes
larvæ arise Which by—and-by settle on rocks, stones, Salmon
stake—nets and other zoophytes, indeed, upon everything ”that
7
'
affords a suitable hold, and rapidly grow into the
'
ï
original with which the cycle commenced.
In their pelagic
condition they are for the most part una‘ëcted-by any modeof _;
f_
shing,though they are often beached in multitudes by the
Ü “
tide.
Nature herself in another instance ordains an annual -'
check to growth on the mussels of the Eden, for the dense and
__
«
graœful tufts—heavy laden with, young mussels—are swept
off in OctOber.
But before this happens the spore—sacs of the
zoophyte ( Goncthyrm)
rise to ’multitudes of pelagic
young'which ere long rênew‘the feathery coating On the
Some
of this
group, again, such as Corymmyza, live
._
immersed in sand, and are difcult to dislodge, even when _
specia‘lly sought after by trawl, dredge or. net.
Thus a large
_
species obtained in considerab1e numbers on the
and trawl of the ‘Medusa’ in 188% in St Andrews Bay has
procured sinice,
various efforts.
,
.
’
Yet the free—swimming jelly—shes it apparently
off are
-
_
common at certain seasons, showing that the parent—stock still
_
remains;
,
A_ rare plant (9.9; Asplen‘ium septentrionale of
'
_Sténton Crag) can readily be extirpated by the hand ofman‘,
but ‘it is otherwise with the
of the
It is not
‘
easy,” indeed, to check the grOwth of such
"
Which other
and feed,1ntu1n tobecome
isu’s‘te‘ançe for the,
:
yungd= bwdynet oph>teEenth
ON ZOOPHYTES AND JELLY—FISHES.
9
.
'
'
show the ever ready resources of nature in restoring losses
spreading useful forms on every suitable site. Thoùgh it were
possible in a given area to remove every vestige of such a form ' '
-
from the sea—bottom, a single summer tide would carry a
sufciency of little ripe jelly—shes (Eydy‘077æêduä‘œ) to repeople
The countlessswarms of these graceful and beautiful glassy
créatures, which stretch for miles round ourshores and far
beyond'int0 the open ocean, is one of the most striking features
in marine life.
From the eggs
of theSe swimming jelly—shes
larvæ arise Which by—and-by settle on rocks, stones, Salmon
stake—nets and other zoophytes, indeed, upon everything ”that
7
'
affords a suitable hold, and rapidly grow into the
'
ï
original with which the cycle commenced.
In their pelagic
condition they are for the most part una‘ëcted-by any modeof _;
f_
shing,though they are often beached in multitudes by the
Ü “
tide.
Nature herself in another instance ordains an annual -'
check to growth on the mussels of the Eden, for the dense and
__
«
graœful tufts—heavy laden with, young mussels—are swept
off in OctOber.
But before this happens the spore—sacs of the
zoophyte ( Goncthyrm)
rise to ’multitudes of pelagic
young'which ere long rênew‘the feathery coating On the
Some
of this
group, again, such as Corymmyza, live
._
immersed in sand, and are difcult to dislodge, even when _
specia‘lly sought after by trawl, dredge or. net.
Thus a large
_
species obtained in considerab1e numbers on the
and trawl of the ‘Medusa’ in 188% in St Andrews Bay has
procured sinice,
various efforts.
,
.
’
Yet the free—swimming jelly—shes it apparently
off are
-
_
common at certain seasons, showing that the parent—stock still
_
remains;
,
A_ rare plant (9.9; Asplen‘ium septentrionale of
'
_Sténton Crag) can readily be extirpated by the hand ofman‘,
but ‘it is otherwise with the
of the
It is not
‘
easy,” indeed, to check the grOwth of such
"
Which other
and feed,1ntu1n tobecome
isu’s‘te‘ançe for the,
:
yungd= bwdynet oph>teEenth