291 



Associated with this pygidium is a glahella, which may possibly belong 

 to it. It is strongly convex ; front rounded ; neck furrow all across ; 

 two pairs of glabellar furrows, inclining a little backwards and extending 

 inwards about one fourth the width or a little more. 



Length of the glabella 2 lines ; width 2 lines. 



Locality and Formation. Gr, Port aux Choix, Newfoundland ; Quebec 

 group. 



Collector. J. Richardson. 



TRIARTHRUS FISCHERI. (N. sp.) 



Fig. 280. 

 Pig. 280. Triarthrus Fischeri. Th'e glabella and fixed cheeks. 



Description. This species has the form of those common in the Utica 

 slate. From T. Bechii it differs in being destitute of the tubercles along 

 the median line of the axis ; from T. spinosus in the absence of the spines 

 at the head and thorax ; from T. Canadensis also in being destitute of 

 spines ; and from T. glaber in having the eyes more distant from the gla- 

 bella. It seems to be smaller than the species above compared, none of 

 the specimens indicating a length of more than eight lines. 



Locality and Formation N, Table Head and Pistolet Bay ; P, Port- 

 land Creek, Newfoundland ; Quebec group. 



Collector. J. Richardson. 



TELEPHUS AMERICANUS. (N. sp.) 



Fig. 281. Fig. 282. Fig. 283. 



Fig. 281. Telephus jJmericanus. The glabella. 



282. Encrinurus mirus. Glabella and pygidium. 

 283. Remopleurides Panderi. The glabella. 



Description. Glabella obtusely conical, length one sixth- greater than 

 the width, rather strongly convex ; front uniformly rounded ; sides parallel ; 

 neck segment and furrow forming nearly one third of the whole length ; 

 the furrow narrow and extending all across. The fixed cheeks are cres- 



