22 



Peronea shepherdana, Stph. J. W M. 1— 1 



Sacculus eniarginate before and alter hall', forming a point. 

 Anal plate heavily set with small spines. Cornuti four fine 

 spines 



Ostium with wide side pieces, lobes broad, rounded. 

 Signum truncate, stellate. 



Peronea aspersana, Hb. 3—2 



We can see little difference between this and shepherdana . 



Valva a little wider. 



Ostium side pieces wider above, lobes narrower than 

 shepherdana; ductus bursa) more definitely geniculate at 

 the sides and longer. 



Peronea holmiana, L. 1—1 



Valva widest at base; sacculus gently curved to anal angle. 

 Socii drooping, set with long spines. Cornuti very 

 numerous, probably about thirty spines. 



Ostium lobes hardly extended. Signum scobinate. 



Peronea lipsiana, Schiff. 1— 1 



R. Adkin and J. 11'. .1/. 

 There are several points that suggest a break away from 



this genus. 



Sacculus very broad, arched before half, edge rugose, 

 terminating in a strong spined tip. Socii long, slender 

 clavate. Cornuti many, very long, slender, about 14-15 

 .spines. 



Ostium lobes widely apart incurved. Bursa without 

 signum. 



Peronea rufana, Schiff 1—1 



(',. F. Whittle, •/. W. ('order and I . W. M. 

 Valva wide: sacculus broad, very gently arched before half, 

 edge rugose, terminating in strong spined tip. Socii long, 

 slender. Cornuti five fine spines. 



Ostium and operculum minutely spined; lobes tapered, 

 not widely apart. Signum scobinate. 



