INTRODUCTKiN TO ZOOL(.)GY. 



THE CYCLOPS. 



oxter 



1 . See the carapace. 

 How many segments 

 ]ias the til o rax? 



2. Seetheej'e. Is it 

 compound? Is it mov- 

 able ? 



3 . How many j oints 

 in tlie antennae? 



4. How many seg- 

 ments in til e abdomen? 

 How does it end ? How 

 many spines at the 

 tip?' 



5 . I f y u r s p e c i m e n 

 ovisacs. Trace the in- 



THE 1>APHXIA. 



1. See the shell. Is it 

 plain or reticulate? 



2. See the eye. Tsitsimjile 

 or compound? Movable or 

 not? Notice the eye muscles. 



3. Trace the intestine. 

 See the br(jad cavity above 

 tlie intestine. If your speci- 

 men is a female, you will 

 probal)ly find eggs in it. 



4. Find the heart. 



5. Is there a spine at the 

 posterior end of the abdomen? 



6. Draw the antenn;e carefully. 



Note. — Da]ihniii ami cyolops are too small to bo satisfactorilj' 

 .studied without a compound microscope. Tlie student, liowever, 

 ouKlit to become familiar witli tlie j^iMieral .appearance of eacli as 

 seen by the unaided eye aud with tlie simple lens. 



DAPUNI.'V, 



