-
their bodies divided into segments, but
echiurans have
secondarily lost
their segmentation. The
majority of
echiurans live in
burrows in soft
sediment in...
- right; but a
molecular phylogenetics analysis in 1997
concluded that
echiurans are annelids.
Myzostomida live on
crinoids and
other echinoderms, mainly...
-
trochozoan clade,
which include the entoprocts, molluscs,
annelids (including
echiurans and sipunculans) and nemerteans. Together,
these phyla make up part of...
-
polychaetes include the ****ellates (earthworms and leeches), sipunculans, and
echiurans. The
Pogonophora and
Vestimentifera were once
considered separate phyla...
- mesoderm) is
derived from the 4d cell. Some of the
ectomesoderm in annelids,
echiurans and
molluscs is
derived from
cells 3a and 3b,
while the
ectomesoderm of...
- DNA has
confirmed their close relationship to the
Annelida (including
echiurans and pogonophorans). It has also been
shown that a
rudimentary neural segmentation...
-
Echiurans, Holothurians.)
Skolithos isp. (Polychaetes, Phoronidans)
Monocraterion tentaculatum (Polychaeta, Sipuncula,
Enteropneustans &
Echiurans) Rhizocorallium...
- many of
which have trochop**** larvae),
including molluscs, annelids,
echiurans,
sipunculans and nemerteans; and some
other phyla (such as Platyhelminthes...
- of
spoon worm in the
family Urechidae,
commonly known as the
innkeeper echiuran, the fat
innkeeper worm (because
their tunnels often contain other animals)...
-
Alaska plaice feed
mostly on polychaetes, but also eat
amphipods and
echiurans. Most
commercial fisheries do not
target Alaska plaice, and
bycatch by...
