-
their bodies divided into segments, but
echiurans have
secondarily lost
their segmentation. The
majority of
echiurans live in
burrows in soft
sediment in...
- 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...
- right; but a
molecular phylogenetics analysis in 1997
concluded that
echiurans are annelids.
Myzostomida live on
crinoids and
other echinoderms, mainly...
- of
spoon worm in the
family Urechidae,
commonly known as the
innkeeper echiuran, the fat
innkeeper worm (because
their tunnels often contain other animals)...
- feed upon s****fish, but also feed on clams, polychaetes, crabs, shrimp,
Echiuran worms, sea cu****bers, gastropods, ophiuroids, and
teleost fishes. Larger...
- DNA has
confirmed their close relationship to the
Annelida (including
echiurans and pogonophorans). It has also been
shown that a
rudimentary neural segmentation...
-
Urechis unicinctus,
known as the fat
innkeeper worm or **** fish, is a
species of
marine spoon worm in East Asia. It is
found in
Bohai Gulf of
China and...
-
polychaetes include the ****ellates (earthworms and leeches), sipunculans, and
echiurans. The
Pogonophora and
Vestimentifera were once
considered separate phyla...
- Hughes, D.J.; Ansell, A.D.; Smith, C.J. (1995). "Burrow
morphology of the
echiuran worm
Maxmuelleria lankesteri (Echiura: Bonelliidae), and a
brief review...
-
Maxmuelleria is a
genus of
echiurans belonging to the
family Bonelliidae. The
genus has
almost cosmopolitan distribution. Species:
Maxmuelleria aulacoferum...
