I used to dissect the fish while taking practice exams at school and organs after dissecting among others
Vesica natatoria (swim bladder), there are two parts of the anterior and posterior, glossy white color, is located adjacent and parallel to the vertebral cavity, useful for sinking raised fish. Channels to insert and remove the air that extends from the esophagus (windpipe) to the posterior part of the vesica natatoria called ductus pneumaticus (pneumatocysticus). Mesonephros (kidney - ren), located between the 2 parts of swimming or clinging bubbles vertebrae. Pronephros (kidney - ren) in front of the vesica natatoriaCor (heart) is located in the ventral part, note the sinus venosus, atrium, ventricle, and truncus arteriosus arteriosusGonad bulbous, yellow or white. In the female contains the egg, on which the male contains sperm. The layout of the gonads usually in the ventral side of pneumatocyst. Intestinum (intestine), seem convoluted belit. Hepar (liver - liver), redness. Vesica fellea (gall bladder) dark green located next dekster ventral lobe of the liver.