They form the majority of the population of the River Xie and the upper Vaupes river above the mouth of the Rio Negro .
They form the bulk of the population of the Xie River and the upper Vaupes River above the mouth of the Rio Negro .

Are these two sentences paraphrases of each other?
yes

He was selected in the 1998 NFL Draft by the St. Louis Rams in the 236th Round ( 7th overall ) with a compensatory pick .
He was selected at the NFL Draft in 1998 by the St. Louis Rams in the 236th round ( 7th general ) with a compensatory pick .

Are these two sentences paraphrases of each other?
yes

Anadasmus endochra is a moth of the Depressariidae family . It is found in Amazonas ( Brazil ) .
Anadasmus endochra is a moth from the family of Depressariidae , which is found in Brazil ( Amazonas ) .

Are these two sentences paraphrases of each other?
yes

It was designed by Little Rock architect Harold A. Berry and Dallas , Texas Architect F. Eugene Withrow in international style .
It was designed by Little Rock Architect F. Eugene Withrow and Dallas , Texas Architect Harold A. Berry in an international style .

Are these two sentences paraphrases of each other?
no