150 Dll G. W. LEE ON 



this specimen to be cut, so that the nature of the tabulae could be ascertained, and a 

 very necessary addition made to the diagnosis of the species. 



The fragments from Nowaja Seinlja are in complete accordance with the Scottish 

 specimens. 



/ /< xaphyllia m'coyi resembles H. prismatica Stuckenberg,* but in the latter the 

 tabulae are much farther apart. 



Class CRINOIDEA. 



Crinoid stems are very abundant, and some of them attain a large size ; but as no 

 portions of calyx were observed, any attempt at identification is out of the question. 

 However, two forms at least appear to be represented. 



Class BRYOZOA. 



This class is very poorly represented ; the few examples at hand, belonging to the 

 Suborders Trepostoinata and Cryptostomata, are specifically indeterminable. Yet the 

 presence of a Stenopora is worth noting, as the genus is not mentioned in Stucken- 

 berg's recent monograph of the Lower Carboniferous Corals and Bryozoa of Russia. t 



Genus Stenopora Lonsdale. 

 Stenopora sp. 



Although thin sections could not be made, on account of paucity of materials, the 

 generic position of the fragments is proved by the nature of the mature end of the 

 zosecia, the casts of which exhibit swellings corresponding to unthickened portions of 

 the wall. 



Fenestellid indet. (cf. Polypora papillata M'Coy). 



A small fragment of a Fenestellid, the obverse face of which is not shown, bears a 

 general resemblance to Polypora papillata M'Coy. The arrangement of the fenestrules 

 is the same, and, in common with it, it possesses a small papillated pore at the origin of 

 most of the dissepiments, a character shared by Polypora spininodata Ulrich,} which 

 is otherwise different. 



Incert^e Sedis. 



I place tentatively among the Bryozoa an indeterminable fragment possibly belong- 

 ing: to the genus Cystodictya Ulrich. 



* Luc supra cit., p. "ri of < ferman text. 



t Mrm. Com,. '•<'"!. Russie, L904. 



| Ural. Surnij of Illinois, vol. viii., I»!)U, pi. lx. fig. 3. 



