60 CONTRIBUTIONS TO CANADIAN PALEONTOLOGY. 



thick, with encircling striae and stronger annulations." He also con^ders 

 it doubtful " if the species can with propriety be retained under Syringo- 

 pora " principally on account of the apparent absence of transverse con- 

 necting tubes. 



In the individuals upon which the original description was based con- 

 necting tubes were not seen, but Dr. Rominger (op. cit) figures a speci- 

 men in which a horizontal process connecting two corallites is clearly 

 shown, proving beyond doubt that this coral has been properly referred to 

 the genus Syringopora and that connecting tubes, though not generally 

 seen, are still sometimes present. 



From the specimens in the collection of this survey it is seen that on 

 the inner surface of the corallites there are about twenty longitudinal 

 rows of short septal spines. In each row the spines are about 05 mm. 

 apart. The inner arrangement of upwardly and outwardly curved plates, 

 which in the original description of the species are referred to us 

 " infundibuliform tabuke," is identical with that which is found in other 

 species of the genus, and the more or less central space frequently left 

 by the inclined imperfect tabulie, and sometimes referred to as a " central 

 tube " is also seen. 



Devonian. — Corniferous limestone of Ontario]; also in the Hamilton 

 formation of Ontario. 



Syringopop.a intermedia, Nicholson. 



Syringopora intermedia, Nicholson. 1874. PaLeon. of Out., p. 120. 



•> ii Whiteaves. 1889. Contr. to Can. Palseon., vol. 1, pt. II., 



p. 120. 



" Corallum lax, spreading, increasing by the production of lateral buds. 

 Corallites cylindrical, often more or less crooked, having a diameter of 

 from one line to a line and a half, or rarely two lines, the lateral buds 

 being produced at angles of from 90° to 40°, and at intervals of from two 

 to four lines. No connecting horizontal processes between the corallites, 

 but sometimes abortive spines or nodes. Epitheca with fine encircling 

 striae, and irregular growth-swellings and geniculations. Internal 

 structure, of infundibuliform tabul&e." (Nicholson.) 



The largest specimen seen by the writer was collected by Johnson 

 Pettit, in the township of Bosanquet, Ont., in 1868 ; it is 4 inches long, 

 2J inches broad, with a maximum height of 2£ inches and is evidently 

 only a portion of the corallum. The corallites have an average diameter 

 of li line and are about from 1 line to 1J line from each other, although 

 they are frequently closer together and often coalesce. The corallum 

 grows upward in an irregular manner from a spreading, prostrate net- 



