Definition of Peristomium. Meaning of Peristomium. Synonyms of Peristomium

Here you will find one or more explanations in English for the word Peristomium. Also in the bottom left of the page several parts of wikipedia pages related to the word Peristomium and, of course, Peristomium synonyms and on the right images related to the word Peristomium.

Definition of Peristomium

Peristomium
Peristomium Per`i*sto"mi*um, n. [NL.] Same as Peristome.

Meaning of Peristomium from wikipedia

- The peristomium is the first true body segment in an annelid worm's body in the anterior end. It is directly behind the prostomium and contains the mouth...
- the blood makes its entire circuit via blood vessels.   Prostomium   Peristomium O Mouth   Growth zone   Pygidium O **** In addition to Sipuncula and...
- filter feeders with no buccal organ. The prostomium is fused with the peristomium and bears a ring of feathery feeding tentacles. They live in parchment-like...
- lower ligules. It is also without a collar-like structure around the peristomium. Sand or rocks in intertidal and shallow marine waters. Pacific Ocean...
- over the dorsal side of the mouth. The prostomium together with the peristomium, which includes the mouth and pharynx, make up the annelid head. The...
- triangular anterior lobe—the prostomium—and a posterior ring-like portion—the peristomium. The latter bears four pairs of tentacular cirri, dorsally two pairs...
- earthworm to prevent escape. The planarians cover, or cap, the prostomium, peristomium, and anterior end to stop the violent reaction by the earthworm. To feed...
- species it is more continuous. The mouth of polychaetes is located on the peristomium, the segment behind the prostomium, and varies in form depending on their...
- Parapodia are mostly biramous (only the first two pairs are uniramous). Peristomium fused with the first body segment, with usually two pairs of tentacular...
- have a primarily sensory purpose. A pair of eyes are also present. The peristomium is probably reduced to a cir****oral ring. The pygidium is usually bilobed...