urian and Devonian Fossils of Canada. 



Syringopora verticilata, (Goldfuss.) 

 (Goldfuss, Petr. Germ., vol. i. p. 76, note 25, 26.) 



Description. — Forming large masses, corallites nearly straight, 

 about two lines in diameter, and from two to three lines distant ; 

 connecting tubes three or four lines distant, verticilating, or three 

 or four radiating from the main tube at the same level in different 

 directions, like the spokes of a wheel. 



Formation and Locality. — Upper Silurian. Head of Lake 

 Temiscaming. Goldfuss' specimens were from Lake Huron. 



Collector. — Sir W. E. Logan. 



Syringopora reteformis (Billings). 



Description. — Forming large masses ; corallites much geniculat- 

 es, frequently anastomosing or connecting by stout processes; 

 diameter of corallites about two-thirds of a line, distant from each 

 other from half-a-line to a line and a-half; distance of connecting 

 processes one line to three lines, usually about two lines. 



Formation and Locality. — Upper Silurian. Isthmus Bay ; 

 Lake Huron. 



Collector; — A. Murray. 



Syringopora debilis (Billings). 



Description.— CoYdWites, a little more than half a line in dia- 

 meter, distant one or two diameters ; connecting processes slender, 

 distant one or two lines. 



Formation and Locality. — Upper Silurian. L'Anse a la Vieille. 



Collector. — Sir W. E. Logan. 



Syriugopora tubiporoides, (Yandell and Shumard.) 



(Contributions to the Geology of Kentucky, page 8; 184?.) 



(M. Edwards and L. Haime, Polypiers fossiles des terrains palceozoiques, 



p. 292.) 



Description. — This species is found in large masses of long 

 slightly flexuous corallites. These have a diameter of about one 

 line and a-half, and owing to their fiexuosity, are at times in con- 

 tact, and often two, three or four lines apart. In large colonies 

 which have grown luxuriantly without the interference of disturb- 

 ing causes, the corallites are more regular than in the smaller or 

 stunted groups, in which the corallites are much bent and eon- 

 fused. The connecting processes are very short and distant, and 

 appear to be sometimes mere inosculations of the stems. The 



