ORGANS OF REPRODUCTION 



237 



shaped gland. The seminal vesicles join behind to form a mus- 

 cular tube, the ejaculatory duct, which opens by a median pore 

 between the ninth and tenth abdominal sterna. A gland of 



Cerebral /.atrum . 

 gan^Ua. 



Sate vary 

 receptacle. 



Visceral 

 nerves 



Hepatic 

 caeca 



Mesenteron) 

 Ileum 



MalpLghtan 

 Cubes. 



Colon.' 



Head. 



Antenna. 



SaUvary 

 gla.'^c/s. 



Vent rat 

 nerve cord. 



Ovasij. 



Colic tenat 

 gland. 



HecCum\ 



Fig. 173. — A female cockroach, dissected from above. - 



and MacBride. 



Oviduct. 



sSpermathecat 



Analcerci 



Genital pouch. 



-Adapted from Shipley 



doubtful function, known as the conglobate gland, lies below 

 the ejaculatory duct and opens with it. The ovaries (Fig. 175) 

 are paired organs in the hinder part of the abdomen, each con- 

 sisting of eight tapering tubes, which show swelhngs correspond- 

 ing to ova. There is a single, short, wide oviduct which opens on 



