no. 1404. 



PA RASITIG COPEPODS—CA LIGIDM— WILSON. 



511 



genital segment, contracts as it enters the abdomen, enlarges in the 

 abdomen, and contracts finally to form a short rectum in front of the 



anus. The lattei is terminal and situated be- 

 tween the anal laminae (fig. 18). 



At the anterior end where it leaves the 

 stomach the intestine is on the ventral sur- 



sbg. 



Pig. L7. — Longitudinal section 



OF LtEPEOPHTHEIRUS SHOWING 

 RELATION OF INTERNAL OR- 

 GANS. (After A. Scott.) a, 



AM's; li. s., i:i. nnii space; c, 

 Kl LAMENT DUCT; C. g., FILA- 

 MENT gland; d, duct of di- 



GESTIVEGI.ANI>;i\ kye; i, INTES- 

 TINE; in, mouth; ml., muscle; 

 ii, vkni'ka i. nerve; ii, ovary; 

 iir., (ESOPHAGI b; r, rectum; 

 BDg., M I'-'l SOFHAGEAL GAN- 

 ..i [ON;Spg.,SUPRACESOPHAGEAL 



ganglion; st., stomach. 



Fig. 18. — The digestive system of Caligus 



rap ax; CHALIMUS FULLY GROWN, g g, DI- 

 GESTIVE glands; i, intestine; o, ovary; 

 r, rectum; S, STOMACH. 



face and it remains there till it passes into the genital segment. 

 Here it Lies close to the dorsal surface and remains there until after 

 it enters the abdomen, where it turns downward and occupies the center 

 of the body. 



In transverse sections of young males and females the stomach and 



