What Is the Orbicularis Oculi?

Rotifera is a genus commonly found in the family Rotidae. The eye point is 1 pair, and it is always located in front of the back of the tentacle to kiss. It is widely distributed in various types of fresh water, and it is also found in the ocean and inland salt water, but the species is scarce.

Sometimes the red pigment of the eye point will fade and disappear. The nuclear body is generally thinner and longer than the genus Rotula, and the kiss is longer than the genus Rotula, and will protrude more or less above the crown of the head. There are three toes at the end of the foot. The tooth pattern is 2/2.

It is widely distributed in various types of fresh water, and it is also found in the ocean and inland salt water, but the species is scarce. Some species with certain salt tolerance can live in estuaries, inland saline waters, and mixed saline waters in shallow coastal areas, and even multiply in large numbers. ^[1]

There are two basic types of rotifers. One type of camp has planktonic or facultative planktonic life; the other type of camp has benthic, attached or fixed life.

Rotation or spiral movement is mainly based on the turning of the cilia of the crown. Although the tail is not the main motor organ, its swing can undoubtedly play a role in fueling the flames. When the foot gland secretion adheres to the matrix, the foot will also make a circular motion, and its speed is generally <0.02 cm / s. ^[1]

Rotifera includes 2 species:

Rotifer

There are feet, feet are long or short, and there are 1 or 2 or several stretchable links, smooth or false joints, with or without toes. The feet have toes and no coats. The body surface is a thin layer of cuticle, which is very transparent and bendable. During exercise, the body shape changes a lot, and the original shape cannot be maintained after fixing. Ciliary rings, with extended or very long feet, with 3 toes and 2 pitches.

Rotifera

There are feet, feet are long or short, and there are 1 or 2 or several stretchable links, smooth or false joints, with or without toes. ^[2]