lambe. ] CANADIAN PALEOZOIC CORALS. 9 



Calamopora epidermata, Rominger. 1862. Am. Jour. Sci. and Arts, 2nd Series, vol. 



XXXIV., p. 39G. 

 Favosites Gothland ica, Nicholson. 1874. Palieon. of Ont., p. 45, (with reference only to 

 the coral from the Corniferous limestone and Hamilton formation). 

 Favosites Forbesi, Nicholson. 1874. Palseon. of Ont., p. 48, pi. VII , fig. 8 and pi. 



VIII., fig. 4. 

 Favosites Forbesi, var. tuberosa, Nicholson. 1879. Palseoz. Tab. Corals, p. 62, pi. III., 



figs. 2, 2 a— e. 

 Favosites epidcrmatus, Rominger. 1876. Geo!. Sur. Mich., Foss. Corals, p. 28, pi. 



VIII. , figs. 1, 2, 3. 

 Favosites tubcrosus, Rominger. 1876. Ibid, p. 30, pi. IX., figs. 1, 2. 

 Favosites tuberosa, Hall. 1876. Illus. Dev. Foss., pi. VIII., figs. 1—7, pi. VI., fig. 6 and 

 pi. XL, fig. 1 ; ibid, var. pi. I., fig. 1, pi. IV., fig. 1, and pi. VII., 

 fig. 1. 

 Favosites epidermata, Hall. 1876. Illus. Dev. Foss., pi. VI., figs. 1 — 5 and pi. XII., 

 figs. 6, 9 — 13 ; ibid, var. corticosa, pi. X., figs. 1—6 and pi. XI., figs. 

 11, 12. 

 Favosites tuberosa, Whiteaves. 1889. Contr. to Can. Palseon., vol. I., pt. II., p. 121. 



Corallum forming irregularly shaped, more or less spreading masses, 

 often with flat or sublobate minor expansions proceeding from the upper 

 surface, or the general form may be hemispherical, subspherical, pyriform, 

 lobate, clavate or even subramose ; basal attachment small. Under sur- 

 faces and often the sides protected by a strong wrinkled epitheca ; the 

 wrinkles are generally rather irregularly disposed and overlap or run into 

 each other, but in some specimens they are more nearly parallel and give 

 to the epitheca a ribbed appearance. The basal portion of the corallum 

 is frequently strongly plicated. The ends of the corallites, when directed 

 upward or outward, except at the top of the corallum, are generally 

 closed by opercula which show a certain amount of concentric structure. 

 The corallites are generally prismatic and rather equal in size when the 

 surface of the corallum is moderately flat but round and unequal in size 

 in specimens or parts of specimens where the surface is rounded ; varying 

 in diameter in the same colony or in different individuals from 2 mm., or 

 even less, to 4 or 5 mm. Tabulae horizontal, complete, sometimes apparently 

 formed by the union of several squamulpe which are present in large 

 numbers. Pores piercing the sides of the corallites in from one to three 

 longitudinal rows, in some specimens large and placed close together, in 

 others smaller and farther apart, generally surrounded by a raised rim 

 which is frequently not preserved on much weathered surfaces. Inner 

 surface of the corallites marked, with varying distinctness, by longitudinal 

 impressed lines, one to each space, between the rows of pores. 



This coral is subject to much variation in outward form, in the size 

 and number of the mural pores and in the size and shape of the corallites 

 themselves, whilst its appearance is much affected by the state of pre- 

 servation of the epitheca and of the tabulae and squamulae, especially the 



