The presence of parapodia distinguish this from other groups of Chaetopoda.
It is held, however, that these are a pair of parapodia which have shifted forwards.
Setae always present and often very large, much varied in form and very numerous, borne by the dorsal and ventral parapodia (when present).
Parapodia hardly projecting; palps of prosomium forming branched gills; no pharynx or eversible buccal region; no septa in thorax, septa in abdomen regularly disposed.
Laterally the foot gives rise to a pair of mobile fleshy lobes, the parapodia (ep), which can be thrown up so as to cover in the dorsal surface of the animal.
Parapodia separate from ventral surface, and generally transformed into swimming lobes.
It includes those that have prominent parapodia and fascicles of set\'91.
The body is short and disklike, with four pairs of suckers and five pairs of hook-bearing parapodiaon the under side.
No other member of the group is known to have any trace of setae or parapodia at any stage of development.
Saccocirrus, which also lives in sand, and more closely resembles the Polychaeta, has throughout the greater length of its body on each segment a pair of small uniramous parapodia bearing a bunch of simple setae.
Defn: One of the ventral parapodia of tubicolous annelids.
It includes those that have prominent parapodia and fascicles of setæ.
The paired claws on the ends of the parapodia and the fang-like modifications of these on the first post-oral appendages (mandibles) are the only hard chitinous portions of the integument.
The movement of the legs in Diplopoda is like that of those of Peripatus, of the Phyllopod Crustacea, and of the parapodia of Chaetopoda, symmetrical and identical on the two sides of the body.
The first of the post-oral somites invariably has its parapodia modified so as to form a pair of hemignaths (mandibles).
The lobes of the parapodiaare widely separated and fringed [pg178] with membrane, appearing like double parapodia.
On the ventral side of the parapodia are whitish tubercles with a dark spot in the middle.
Parapodia are often lacking on the posterior parts and are usually without cirri.
The parapodia are sometimes divided into distinct lobes or branches.
Breathing is carried on over the whole surface of the body, and especially in parts of the lobes of the parapodia called gills.
Moreover, we have seen that the parapodia of annelids naturally point to the development of an external skeleton, for their muscles are already a part of the external body-wall and attached to the already existing horny cuticle.
The legs are theparapodia of annelids carried to a vastly higher development.
They transformed the annelid parapodia into legs and developed wings.
It had to modify the already existing parapodia and their muscles, changing them to legs.
They extend out far laterally so as wholly to overlap theparapodia proper though the ends of the setae and notocirri extend beyond the edges.
Color of venter and parapodia grey; elytra at present grey over a fulvous ground.
The lobes of theparapodia are in general similar though they do not become obvious so far forward.
The short, distally rounded notocirri are attached at the base of the parapodia above in the angle between the latter and the body wall.
Parapodia and cirri typically pale fulvous and the venter either similar or approaching the dorsum in color.
Parapodia uniramous with setae all compound, or in the epitokous phase with long simple natatory setae in notopodia of middle region of body.
The notocirri attached above bases of parapodia as usual; long, composed of numerous short segments; much longer than the tentacles, each average one when laid back along body ordinarily passing over three or three and a half segments.
A less deeply pigmented species easily distinguished from this northern form in wholly lacking the ventral papillae (neurocirri) present in the latter below the parapodia of about the eighteenth to thirtieth segments.
The parapodia very similar to those of the genotype; but the setigerous lobe less acutely and less deeply notched and rather broader across the end along the setigerous line.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "parapodia" in a variety of sentences. We hope that you will now be able to make sentences using this word.
