Lateral line organs occur in

Lateral line sense organs occur in

Lateral line sense organs occur in

Lateral line sense organs occurs in

Lateral line sense organs occur in

Lateral line occurs in

Lateral line occurs in

Lateral line occurs in

Lateral line occurs in

[A]: Lateral-line organs are important in connection with aquatic mode of life. [R]: They are highly supplied with branches of cranial nerves and they are entirely disap- peared in terrestrial forms.