STAR FISH (3027) The model features a detailed study of star fish. Three arms and the central disc of the star-fish are greatly enlarged. Asterias are dissected to show ventral and dorsal surfaces, digestive and water vascular systems, gonads. nerve ring and radial nerves. and the skeleton. A fourth arm is cross-sectioned to show the coelom and tube feet. The surface illustrates the podia and pedicel-Iariae. The model can be removed from its stand for closer examination. With numbered Key Card. Qty :