DESCRIPTIONS OF GENERA AND SPECIES 



581 



SPERM FUNNELS. 



opposite testes without 

 swollen vesicula seminalis 



opposite testes without 

 vesicula 



opposite testes 



single, opposite testes 



single, behind testes with 

 dilated vesicula 



with dilated vesicula 



with dilated vesicula, 

 behind testes 



opposite testes 



with dilated vesicula, 

 behind testes 



with dilated vesicula 

 without vesicula seminalis 



without vesicula seminalis ; 

 single pair 



without vesicula seminalis 

 with dilated vesicula 



SPERMIDUCAL GLANDS. 



open on xvii/xviii ; penial setae 



single, open on xvii/xviii ; penial 

 setae ; also on xv, xvi 



open on xvii/xviii ; also a single tube 

 connected with a penis ; penial setae 



open on xvii ; two protrusible penes, 

 with rudimentary penial setae 



open on xvii ; penial setae 

 open on xvii ; no penial setae 



open on xvii ; penial setae 



open on xvii/xviii ; penial setae 

 present or absent 



open on xix ; no penial setae 



open on xvii/xviii ; penial setae 



open on xvii ; no penial setae 



paired, open on xvii ; no penial 



setae 



paired, xvii/xviii ; no penial setae 



xvii ; penial setae ; walls often 

 muscular 



paired on xvii ; walls muscular ; 

 penial setae 



open, xvii/xviii ; no penial setae 



open, xvii ; no penial setae 



SPERMATHECAL SACS. 



single pouch, opening on xiii ; not 

 enclosing ovaries 



single pouch, opening on xiii 



single pouch, opening on xiii ; also an 

 annular sac surrounding this and en- 

 closing ovaries 



ring-shaped sac, opening on xiv/xv and 

 enclosing ovaries 



single pouch, opening on xiii. 

 very complicated, enclosing ovaries 



single pouch, opening on xv 



single, opening on xiii, giving off lateral 

 pouches which are connected with 

 ovarian sacs and open into gut 



two sacs, opening on xiii, connected 

 with ovaries 



one sac, opening on xiii, surrounding 

 gut and enclosing ovaries 



one sac surrounding gut, and connected 

 with ovaries enclosing a true sperma- 

 thecae 



two sacs ; paired apertures connected 

 with ovaries 



two sacs completely separate from 

 orifices on xiii ; ovaries free 



spermathecae opens on xiii ; ovaries free 



paired on xiv/xv ; ovaries enclosed in 

 a sac communicating with them 



open on x ; ovaries enclosed 



paired, surrounding end of a true sper- 

 mathecae ; ovaries enclosed 



paired ; ovaries enclosed 



(3) There are unpaired calciferous pouches in the segments immediately anterior 



to that in which a pair of calciferous glands lie. 



(4) Nephridiopores paired on each segment. 



These same characters are met with in Polytoreutus, Teleudrilus, Hypenodrilus, 

 H, and possibly in Paradrilus and Preussia. In the two last-mentioned 



