Young-shaped outline
larvacea
Last search animal subphylum 1 Gang, also known as sea squirts Last Gang. Full of small zooplankton. For adult life with the larval tail and the spinal cord is named. Animals Asia is the last door in search of the most primitive type. Distributed in the ocean. China's coastal areas are distributed from inshore to offshore.
The body surface is a layer of transparent gelatinous tunicates. Adult sub-trunk and tail in two parts. Body oval. Tail flat, than trunk length. Central to the tail end of cable, with muscles on both sides. Some species have both sides of the tail cord cells called the notochord under the cells. Port in the front torso, followed by the pharynx (gill pouch). Pharyngeal gill slits on either side of a (gill holes), no gill cavity around, opening directly in vitro. Movement by the end of the swing and hit the water into the water hole; then compressed the body and out of the water from the water hole, to propel the body forward. The back of the pharynx short esophagus, stomach and esophagus are part of the following expansion in the intestinal gastric take a narrow, extended forward in the ventral body, the end is the anus, directly open to the body. In the pharynx of a gully within the ventral column, in column 2 to 4 on both sides of the prostate cells. Columns within the front on both sides of the mouth glands (some species no.) Heart simple cystic, located below the stomach, some types of no heart. Pericardial cavity at the back wall of the small sinus connected with the heart. The top rear of the mouth, pharynx back in front of a large ganglion, called the brain sections. Ganglion on the left there is a balancer. By the separation of a nerve ganglion, from the back through the left side of the stomach into the tail, along the left side of the notochord through the tail end. The vast majority of hermaphroditism. Testes and ovaries in the trunk of the back-end. Ovary one, located between the left and right testis, gonads mature body wall broken out.
The oceans are distributed mainly in temperate and tropical oceans, they can be used as bio-currents and water mass indicator species, but also for fish, shrimp bait. |