120 ROYAL SOCIETY OF CANADA 



ANNKLIDS. 



Trails and faHtinp;s of worms aro not infrequent in the shales holding 

 the sponges. Some surfaces are covered wit h what seem to be very minute 

 cylindrical smooth trails of woriiis, and larger worm-like bodies in pyrite 

 seem to represent casts of burrows or of the bodies 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 Arcniccoliti's .ynralis already mentioned. These burrows and 

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

 in the beds of the (Juebec Group. 



MISCELLANEOUS FEAGMENTS. 



Minute fragments, possibly referable to Trilobites, Cystideans and 

 Graptolites, are occasionally seen, though very rarely, and ai'e quite 

 indeterminable. 



ALG/E. 



BUTHOTKEPHIS PERORACILIS, DaWSOn. 



(Fig. 82.) 



. Fig. 32. — Buthotrephis pergracilis. 



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

 of 1889, except that some of 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 fibres; 

 and that at the extremities of some of the branches thei-e are tufts of 

 rounded masses of granular pyritous matter; but whether these are 



