212 



Description. Obtusely turbinate, expanding to the width of twelve 

 lines at a height of nine lines ; base obtusely rounded ; cup wide and 

 deep ; walls thin. The substance appears to be composed of thin parallel 

 fibres running from the base upwards, about twelve in the width of one 

 line. The thickness of the walls in a specimen nine lines in height and 

 twelve in width is about one line at the margin, and two lines at the 

 bottom. The cup therefore occupies nearly the whole bulk. 



Locality and Formation. Gr, Cape Norman, Newfoundland : Quebec 

 group. 



Collector. J. Richardson. 



TRACHYUM RUGOSUM. (N. sp.) 



Description. The only specimen collected is a rudely cylindrical mass 

 three inches in length and eighteen lines in diameter. It has three or 

 four deep engirdling constrictions, and is composed of the same fibrous 

 structure as T. Cyathiforme, with which it was found in the same bed. 



The above name is proposed for it provisionally. 



ZOOPHYTA. 



It is remarkable that throughout so vast a series of fossiliferous lime- 

 stones as that of the Quebec group, there should be an almost total 

 absence of corals. Four species only have been detected, and these are 

 represented by only eleven fragments, in a collection of fossils which 

 numbers more than a thousand specimens. Of these, the only one that 

 can be certainly determined is Stenopora fibrosa (Goldfuss) ; one good 

 specimen was found in Division H, at Table Head, and another in P, 

 Cow Head : the latter at least 2000 feet above the former. At Cow 

 Head there were collected some fragments of what seems to be a species 

 of Petraia allied to P. corniculum^ but the specimens are very obscurely 

 preserved, and it is quite possible that they may belong to one of the 

 genera of sponges, Archeocijathus or Calathium. 



The other two species appear to belong to the genus Stromatopora. 

 They are the following : 



STROMATOPORA COMPACTA. (Billings.) 



A single specimen, not distinguishable from this species (see ante, 

 p. 55,) was found in Division L, at Point Rich. 



