120 



ROYAL SOCIETY OF CANADA 



ANNELIDS. 



Trails and caKtiiii^s of woi-ms arc not infrequent in tlie shales holding 

 the sponges. Some surfaces are covered with what seem to he very minute 

 eylindrical smooth trails of worms, aii<l larger worm-like Ixxlies in pyrite 

 seem to represent casts of harrows or of the hodies of worms. Some of 

 these are a quarter of an inch in diameter and rudely annulated in an 

 irregular manner. There are also a few casts in pyrite of spiral forms 

 like the Aroiiccolitcs sj>inUit<. already mentioned. These hurrows and 

 trails are similar to those found in various places at and near Little Metis 

 in the heds of the Quehec Grouj). 



MISCELLANEOUS FKAGMENTS. 



Minute fragn>ents, possihiy referable to Trilohites, Cystideans and 

 (rraptolites, ai'O occasional!}- seen, though very rarely, and are quite 

 indeterminable. 



AUiJE. 



BUTHOTREPHIS PERORACtLIS, DaWSOU. 



(Fig. 32.) 



Fig. 'S2.—Bufhofrephis pergracilis. 



I have nothing to add to the description of this species in the paper 

 of 1889, except that some ot the specimens appear to be connected below 

 with a network of slender filaments spread out on the shale, that some of 

 the specimens show indications of a structure of elongated cells or fibresi 

 and that at the extremities of some of the branches there are tufts of 

 rounded masses of granular pyritous matter ; but whether these are 



\li 



