The famous Indian zoologist who wrote a memoir upon $Pheretima$ $posthuma$ is:

Earthworms move with the help of which of the following?

Earthworm shows locomotion by means of

The colour of the body in earthworm is brown due to the presence of

Number of lateral hearts in Pheretima are

Identify the correct terms for the following analogy:
$(i)$ Excretory organ in cockroach : Malpighian tubules :: In earthworm : ...........
(ii) Scientific name of cockroach : Periplaneta americana :: Scientific name of earthworm : ...........