100 ON THE tOSBIL CORALS OF THE 



about half a line. In general they ate Opposite^ but in some places 

 those of one row alternate with those of the other. In fig. 3 e, which 

 represents a portion of the specimen a little enlarged, the pores are 

 placed alternately, and surrounded by a narrow elevated rim. The 

 faces of the tubes exhibit a few scattered tubercles, which, according 

 to Edwards and Haime, represent the radiating lamellse in a rudiment- 

 ary state. In fig. 3 c, the average width of the tubes is about one and 

 a quarter lines, and in 3 d, the same. In 4 c, which Goldfuss refers 

 to JR hasaltica, most of the tubes are one and a half lines in diameter, 

 with a few very small ones interposed. In 4 d, which is an enlarge- 

 ment of a portion of 4 c, two of the faces exhibit a single row of pores, 

 but upon a third face there appear to be two series, one of which 

 however is but imperfectly shown, as it is much obscured by the shad- 

 ing of the drawing. Specimens agreeing well vrith this figure, are 

 common in the Devonian of Canada West. The other figures given 

 by Goldfuss exhibit tubes one and a half lines in diameter on an av- 

 erage. He also states that one of his specimens came from Drum- 

 mond Island. {Ferner Icommt sie auch, nach einem Exemplar der 

 Akademischen Sammlung avf Drummond-Tsland vor.) The specimen 

 must have been therefore collected from the Niagara limestone, which 

 we know to be the most recent rock of that locality. 



2. Edwards and Haime. Polypiers fossiles des Terrains Palceo' 

 soiques. p. 233. 



These authors describe JP. Gothlandica as consisting of convex 

 somewhat elevated masses, with tubes a little unequal in size, each 

 having ten or twelve radiating septa, represented by spiniform 

 tubercles. On each face of the tubes two aeries of pores, each pore 

 surrounded by a small elevated border ; the pores of the same series 

 a little more distant than is represented in the figures of Goldfuss.— 

 They alternate a little with those of the neighboring series, and the 

 spiniform tubercles representing the radiating septa more numerous 

 and prominent than they are shewn to be by the same author. Dia- 

 meter of the large tubes, three millemeters, or one line and a half. 



In another work, Beitish Fossiii Coeals, Palceontographical 

 Society's publications, Edwards and Haime describe the species in 

 the same general terms, but state that the breadth of the calicos is 

 "somewhat more than one line." They consider F. Niagarensis^ 

 Hall, to be F. Gothlandica, and also deny that this latter species 

 occurs in the Devonian. 



