194 



BR. A. ARNBACK-CHRISTIE-LINDE ON THE 



figure shows three transverse sections of the genital ponch with 

 the ducts, which are cut obliquely. The brood-pouch is repre- 

 sented by a short blind sac ; like the oviduct, it is compressed from 

 side to side. In text-figure 8 a the oviduct and the brood-pouch 



Text-fiaure 6. 



Text-figure 7. 



od- 



■•■vd. 



Text-fig. 6. — KuTcentlialia horealis (Gottscli.). 



Transverse section of tlie genital poiicli. X 110. 

 od. Oviduct, vd. Vas deferens. 



Text-fig. 7. — KiikentliaUa horealis (Gottscli.). 



The reproductive organs from tlie outside. X 23. 

 hp. Brood-pouch. o. Ovarium. od. Oviduct. 

 vd. Vas deferens. 



t. Testis. 



Text -figure 8. 



Kul-eiifJialia horealis (Gottscli.). 



Sections through the genital pouch, showing the distal part of the oviduct and 

 the rudimentary brood-pouch ; cut obliquelj'. X 50. 



bp. Brood-pouch, od. Oviduct, o. Opening into tho peribranchial cavity. 

 vd. Vas deferens. 



are still separated ; fig. h shows how the oviduct opens into the 

 brood-pouch, and in fig. cthe opening into the peribranchial cavity 

 is visible. 



Whether this blind sac is to be regarded as a vestigial trace or 

 possibly as a rudiment of the brood-pouch, is a question which 



