Lord Walsingliam on Asiatic Tortiicidae. 121 



not oriffinate till Silurian times and was nowhere represented 

 in larfj;e numbers. Flexibilia, too, have not hitherto been 

 known earlier than tiie Wenlock Ai;e, so that their rarity in 

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

 are just what one mii^ht expect. The imj)ortance of Caleido- 

 crinns has already been dwelt on. The Monocyclica Came- 

 rata, which form the dominant assembla2je, present no genus 

 at all puzzling except Lauheocrinus. The others belong to 

 widely spread families, and even the new genera among thetn 

 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 

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

 storaidfB, 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, thouglit 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 magniticent work of 

 Barrande. 



Natural History Museum, 

 London, S.W. 



XIII. — Asiatic TosTsrciDJi. 

 By the lit. Hon. Lord Walsingham, ALA., LL.D., F.R.S. 



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



Carposina, II.-S. 



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



Antennae {^) biciliate (3); dirty brownish white. Palpi 

 whitish, the median joint shaded externally with fuscous, the 

 terminal broadly annulate with fuscous at its base. Head 



