-
presence of a
muscular region of the
anterior digestive tract known as the
proventricle.
Syllid worms range in size from 2–3 mm (0.08–0.12 in) to 14 centimetres...
- clavata.
While similar, the
Australian species has a
longer pharynx and
proventricle; at the same time,
blades of
chaetae are
present in the
Australian species...
-
segments and is
longer than the
proventricle. Its
pharyngeal tooth is
conical and
located on its
anterior margin. Its
proventricle is
short and
spans through...
-
width of the
proventricle. Its
pharyngeal tooth is
located on its
anterior margin,
surrounded by a
crown of soft papillae. The
proventricle possesses 15...
-
differing from
pilkena in that the
latter has
significantly longer proventricles,
while its
compound chaetae are
short and unidentate. At the same time...
- the
anterior margin of the pharynx. They
usually count with a
short proventricle,
itself provided with
large muscle cell rows,
large posterior acicula...
- segments. Its
pharyngeal tooth is
probably located on its
anterior rim. Its
proventricle spans through 1 or 2 segments, with 12
muscle cell rows. Its pygidium...
- segments. Its
pharyngeal tooth is long,
located on the
anterior margin. Its
proventricle spans through two segments, with 23
muscle cell rows. Its
pygidium is...
-
pharynx spans approximately 3
segments and is
relatively slender. Its
proventricle spans through 1 or 2 segments, with 15
muscle cell rows. Its pygidium...
-
pharyngeal tooth is rhomboidal,
small and
placed near the opening. Its
proventricle is long and wide, barrel-shaped,
spanning through 3 segments, with 15-17...
