- best-studied
structures in
these animals.
Segments bearing chaetae are
called chaetigers. The
ultrastructure of
chaetae is
fundamentally similar for all taxa but...
- the
first four
chaetigers (i.e. chaetae-bearing segments),
usually with
strong spines; 3) an abdomen, with
several longer chaetigers that are
often followed...
- (A)
Anterior end of
Magelona mirabilis,
showing prostomium, palps,
achaetous first segment and
first five
chaetigers (dorsal view)...
-
spines or
reduced uncini in the
first four
chaetigers (i.e.
segments with chaetae),
subsequent chaetigers with a row of
rostrate uncini, a
pygidium with...
- to side, "rowing with [their] bristles."
Species have nine to
eleven chaetigers (chaeta-bearing segments).
Buskiella abyssorum are
covered by a transparent...
- up to
three anterior chaetigers but in the
subfamily Thelepodinae the
gills are
numerous simple filaments. The mid-body
chaetigers are in
double rows in...
-
acicular spines in the
anterior chaetigers (i.e.
segments with chaetae) and as
rostrate uncini in
posterior chaetigers, a long and
conical pygidium with...
-
counts with 25
chaetigers over a
length of 1.9
millimetres (0.075 in) with
palps but
without anal cirri. Its
width at its
sixth chaetiger is 250µm without...
-
neurochaetae in a
number of
anterior chaetigers,
presence of a
double row of
terebelloid uncini on some
chaetigers,
subrostral (i.e.
below the rostrum)...
-
begin on the
fifth chaetiger (i.e. any
segment with chaetae); they
present double rows of
uncini in
median and
posterior chaetigers; they have an indeterminate...
