THE INSECTA 163 



mushroom-shaped gland. This organ consists of two short 



vni 



Fig. 40 



A The generative organs of the female cockroach as seen from the right side after 

 the removal of the right side of the body and the paired organs of the right side. 

 The terga are numbered by Arabic numerals, the sterna by Roman numerals. 

 0v, ovary of the left side ; eg, colleterial gland ; sp, spermatheca with its caecal 

 appendage ; gp, gonapophyses ; an, anus ; R, rectum. The position of the 

 eighth and ninth sterna should be particularly noted. B, A similar view of the 

 male organs. /, testis of the left side ; v.s, mushroom-shaped gland or vesiculse 

 seminales ; cl.g, conglobate gland : st, style ; ga, genital armature ; R, rectum. 

 Vila, p >sterior division of the seventh sternum of the female. For further 

 description, see text. 



