Lord Walsingham on Asiatic Tortricidae. 121 



not originate till Silurian times and was nowhere represented 

 in large numbers. Flexibilia, too, have not hitherto been 

 known earlier than the Wenlock Age, so that their rarity in 

 the lower beds and the appearance of an Ichthyocrinus in f 2 

 are just what one might expect. The importance of Caleido- 

 crt'nus has already been dwelt on. The Monocyclica Came- 

 rata, which form the dominant assemblage, present no genus 

 at all puzzling except Laubeocrinus. The others belong to 

 widely spread families, and even the new genera among them 

 are not so distinct as to indicate any great isolation of their 

 life-province. Indeed, the vertical distribution of the Crinoids 

 within the Bohemian basin, and such a curious detail as the 

 fact that all the stem-fragments attacked by parasites ( Myzo- 

 stomides, the authors say) come from the one band f 2, seem 

 to show that the nature of the genera found was dependent 

 rather on their selection by a local and temporary environ- 

 ment than on any wider conditions governing the migration 

 of faunas or the evolution of orders. 



Since the foregoing pages were written the senior author 

 has passed beyond reach of criticism. I have not, for that 

 reason, thought it necessary to modify any of my remarks, 

 since they were never intended to depreciate the labours of 

 those to whom we are indebted for this exhaustive account of 

 the Lower Palaeozoic Crinoids of Bohemia. It is clear that 

 the conditions imposed on them rendered their task one of 

 peculiar difficulty ; but the volume they have produced is 

 none the less worthy of its place in the magnificent work of 

 Barrande. 



Natural History Museum, 

 Loudon, S.W. 



XIIL— Asiatic Tortbicid^s. 

 By the Rt. Hon. Lord Walsingham, M.A., LL.D., F.R.S. 



[Continued from vol. v. p. 490.] 



Caeposina, H.-S. 



912 (3). Carposina niponensis, sp. n. 



Antennce (<$) biciliate (3); dirty brownish white. Palpi 

 whitish, the median joint shaded externally with fuscous, the 

 terminal broadly annulate with fuscous at its base. Head 



