Narrated stereocyte

[Cell Lan 3d]

The second very necessary cell is a narrated stereocyte (NS). Unlike the usual stereocyte, the NS has only 1 mustache, and it sees not in the form of an hourglass (><), but in the form of their halves (<). What is it for? In many organisms that, when in contact with the enemy, do not need a stereocyte or feelocyte (another cell I suggested), but something extraneous. It should see in one direction and give a signal when an enemy approaches. The stereocyte will not help if another enemy approaches from behind (then the value of the signal substance will be negative).