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Instabilis; ineerta. 



Harpe without corona, anal angle of cucullus pointed ; 

 clasper an irregularly curved arm ; ampulla long with a 

 pointed tip ; sacculus with rounded clavus ; uncus 

 spatulate, broadest before the tip, which is pointed; 

 sedceagus with a long cornutus on the outside of the orifice. 



Stabilis. 



Harpe without corona, emarginate at the anal angle, which 

 is peaked ; clasper rounded ; ampulla lobed to a point 

 and heavily scobinated ; uncus roundly tongue shaped, 

 emarginate laterally ; vesica with a curled band of small 

 fine teeth ; juxta cleft, forming two strong peaks. 



Cruda; pulverulenta. 



Harpe without corona ; clasper rounded ; ampulla long, 

 broader towards the base, tip spined ; uncus tapered and 

 sharply pointed ; vesica with muscular interior ; juxta 

 peaked in the centre. 



Miniosa. 



Harpe without corona, anal angle produced and pointed ; 

 clasper with wide mouth ; ampulla shortish, pointed ; 

 uncus slender and parallel ; vesica with bunch of teeth 

 and short bulbed cornutus ; juxta indented. 



Opima. 



Harpe with corona ; cucullus divided, pointed at the anal 

 angle ; below the cucullus is a protruding pollex, terminat- 

 ing in small spines ; clasper rounded with a small papilla ; 

 ampulla long and blunt at the tip ; uncus rounded at the 

 tip ; vesica with strong cornutus ; juxta deeply cleft. 



Graeilis. 



Harpe with corona, cucullus with pollex at the anal angle ; 

 clasper rounded, with a short papilla or nipple ; ampulla 

 long and curved ; uncus cygnated ; aedceagus toothed and 

 crested at the orifice ; vesica with bulbed cornutus and 

 bunch of teeth ; juxta cleft, forming two squamose peaks. 



Gothica. 



Harpe without corona, emarginate on the margin, forming 

 a blunt point ; from the upper part of the cucullus arises a 



