300 THE ROSY HEART-URCHIN. 



is seen on the elytra of many beetles ; the ' Cake- 

 Urchin/ which from its flattened form may be re- 

 garded as a link between the Sea-Urchins and the true 

 Star -fishes ; the ' Purple Heart-Urchin/ and the 

 pretty ' Eosy Heart-Urchin/ appropriately named 

 from the brilliant crimson hue that its body presents 

 during life. 



