47 



of various size, scobinate, one with base. Coremata trun- 

 cate, hairs long. 



Ostium weak. Ductus bursae short. Bursa pannicular, 

 teeth strong. 



Lariciata, Frr. 53 



Valva large, broad, anal angle produced. ^dceagus small. 

 Cornuti one narrow spine; one broad irregular plate. 

 Papillae long, narrow, sparsely spined. Coremata sessile, 

 hairs long. 



Ostium weak. Ductus bursse small, short. Bursa 

 double lobed, upper part with patch of scattered spines; 

 lower lobe almost instrate. 



Helve tic aria, Bdv. 22 



We can see little difference between this and arceuthata, 

 but hesitate to express an opinion without more material. 



Valva broad, short, pointed. Cornuti three, one 

 strong, scobinate; one dentate; one indefinite plate with 

 base. Coremata sessile, hairs scanty. Saccus rounded. 



Ostium weak. Ductus bursae short. Bursa with heavy 

 fold, subcylindrical , basal half sparsely spined with irregu- 

 lar spines. 



Arceuthata, Frr. 11 



Valva broad, short, pointed. Cornuti two, possibly three, 

 one broad, strong, scobinate; one dentate; one indefinite 

 with base. Coremata sessile, hairs scanty, long. 



Ostium weak. Ductus bursae short. Bursa with heavy 

 fold, subcylindrical, basal half spined with large irregular 

 spines. 



Scabiosata, Bork. 4 3 



Valva long, rather narrow. Labides well spined. Cornuti 

 two strong, with few heavy dentations; the larger one with 

 about five teeth; the smaller one with about three, and a 

 large base. Coremata globular, hairs long. Saccus 

 rounded. 



