The three foremost of these at first supply gills, and in the Perennibranchiate forms continue to do so through life.
These discoveries would seem to indicate that it might be possible artificially to cause the Newt to revert to a perennibranchiate condition.
Although there are four branchial arches in all the larval forms of the three orders, and throughout life in the Sirenidae, the perennibranchiate Proteidae have only three (see fig.
These statements do not apply to certain larval or perennibranchiate forms.
Among neotenous orperennibranchiate urodeles there is no separate operculum or opercularis.
Dvinosaurus Amalitzky, a perennibranchiate stegocephalian from the Upper Permian of North Dvina.
Axolotl does not correspond in all details with itsperennibranchiate ancestors.
Each Triton is perennibranchiate throughout a long period of its life; the reverting individual simply reverts to the older phyletic stage by remaining at the larval stage of its individual development.
Now this saltness cannot in itself be the cause of the degeneration to the perennibranchiate form, but it may well be so in combination with other pecularities of the lake.
On the other hand, we should correctly comprise under the genus Amblystoma all those species which propagate in this state regularly, and in which the perennibranchiate stage occurs only as a larval condition.
It is thus established that species which long ago reached the salamander stage in phyletic development, may occasionally degenerate to the perennibranchiate stage.
This, it then seemed, solved the often-discussed question of the perennibranchiate nature of these Batrachians.
In Gadow's opinion, the reason why there are only perennibranchiate axolotls in these lakes is obvious.
It may be supposed generally that reversion is brought about by the same external conditions as those which formerly produced the perennibranchiate stage.
It has not yet been determined whether the perennibranchiate form of the Triton actually prevailed permanently in De Filippi’s pool, since, so far as I know, this has not since been examined.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "perennibranchiate" in a variety of sentences. We hope that you will now be able to make sentences using this word.
