STUDIES IN ANIMAL LIFE. 



serve lie has no legs ; or, 

 rather, legs and arms are 



Fig. 8. CYCLOPS. 



a, large antennae ; 6, smaller do. ; 



c, egg-sacs (magnified). 



Fig. 9. DAPHNIA. 



o, pulsatile sac, or heart ; 6, eggs ; 

 c, digestive tube (magnified). 



hoisted up to the head, and become antennae (or 

 feelers). Here (Fig. 9) is a Daphnia, grotesque 

 enough, throwing up his arms in astonished awk- 

 wardness, and keeping 

 his legs actively at work 

 inside the shell as res- 

 pirators, in fact. Here 

 (Fig. 10) is a Eurycer- 

 cus, less grotesque, and 

 with a much smaller eye. 

 Talking of eyes, there is 

 one of these Entomos- 

 traca, named Polyphemus, whose head is all eye; 

 and another, named Caligus, who has no head at all. 

 Other paradoxes and wonders are presented by this 

 interesting group of animals ;* but they all sink 



* The student will find ample information in BAIKD'S British 

 Entomostraca, published by the Kay Society. 



Fig. 10. EuBYCEEctrs. 



a, heart ; 6, eggs ; c, digestive tube 

 (magnified). 



