शरीर को लगातार metameres या segments में पृथ्वी के किनारे या lobsters में विभाजित किया

metameric's Usage Examples:

In the true Chitonidae there are generally two apertures on each side, and in two species three or four, another instance of the tendency to metameric repetition in the group. The auricles are connected with one another posteriorly behind the ventricle.

The Cephalopoda can be derived without much difficulty from the schematic Mollusc, if we assume that some metameric repetition of organs has occurred, as explained above in reference to the coelom.

The metameric repetition of the shellplates and of the ctenidia are probably special modifications, but it is difficult to explain the spicules of the dorsal integument except as a condition more primitive than the shell itself.

On the other hand, there is no evidence that the forms which show no metamerism, such as the Gastropoda, are descended from metameric ancestors.

Palaeontology therefore throws no light on the question whether the metameric or the unsegmented Mollusca were the earlier.

In the latter respect, and in the fact that they frequently develop by a metamorphosis, they approach the Mollusca, but they differ from that group notably in the occurrence of metameric segmentation affecting many of the systems of organs.

In one family (Ligulidae) the segmentation is only expressed in the metameric distribution of the generative organs and the worm is externally unisegmental.

It is important to notice that the metameric plan of growth of Chaetopods is still preserved.

- " Errant" Polychaetes with well-marked prostomium possessing tentacles and palps with evident and locomotor parapodia, supported (with few exceptions) by strong spines, the aciculi; muscular pharynx usually armed with jaws; septa and nephridia regularly metameric and similar throughout body; free living and predaceous.

According to Heymons, the yolk-cells must be Metameric Segmentation.

metameric's Meaning':

having the body divided into successive metameres or segments as in earthworms or lobsters

Synonyms:

divided, segmented, segmental,

Antonyms:

united, integrated, collective, joint,