51 
The above would stand as a general definition for a number of branching species of 
Favosites, which some eminent paleontologists, such as Lonsdale, McCoy and Billings, regard 
as belonging to a single natural group; whilst other high authorities as De Blainville, and 
Milne Edwards and Haime, distribute them amongst several species. My own view would 
coincide with the former of these—namely, that the forms in question should be regarded as 
belonging to a single very variable specific type, the Favosites polymorpha of Goldfuss. As 
this view, however, has not been universally accepted by the leading authorities on the sub- 
ject, I shall describe the branching forms of Favosites which occur in the Corniferous Lime- 
stone of Western Ontario, under the names of /. polymorpha, F’. reticulata, F. dubia, and F. 
cervicornis.’ To these I have to add am allied but apparently distinct and undescribed form, 
which I shall designate by the name of 1’. Chapmani, and which appears to be in some res- 
pects intermediate between the genera Favosites and Alveolites. 
Taking this view of the subject, /avosites polymorpha proper will be restricted to such 
forms as are more or less massive or lobate, thus constituting a transition between the truly 
massive species and the regularly dendroid types such as /’, reticulata and F. dubia. The 
calices are polygonal, of unequal sizes, there being small ones intercalated amongst the larger. 
The diameter of the larger calices is generally about two-thirds of a line ; and their walls are 
not particularly thick. 
As thus restricted, 7’. polymorpha can not be said to be of common occurrence in the Cor- 
niferous Limestone of Western Canada ; and I have met with comparatively few specimens 
which would conform with the figures given by Goldfuss in his great work. (Petrefacten, 
Plate XXVII. Figs. 2b, 2c, 2d, 3b and 3c.) This is the more singular, as the regularly 
branched forms which constitute /’, reticulata and F. dubia, are of exceeding common occur- 
rence, 
Locality and Formation.—Corniferous Limestone of Port Colborne and Ridgeway. 
53. FAVOSITES RETICULATA (De Blainville). 
(Plate VII. Fig. 2). 
Calamopora spongites (var. ramosa) (Goldfuss), Petref. Germ. Plate XXVIII. Figs. 
2a—2q, (ceet. exclusis). P 
Alveolites reticulata (De Blainville), Dict. Vol. LX. p. 369. 
Favosites Orbignyana (De Verneuil and Jules Haime), Bull. Soc. Géol. de France, 2nd 
series, Vol. VII. p. 162. 
Favosites reticulata (Milne Edwards and Jules Haime), Pol. Foss des Terr. Paléoz. p. 
241. ; and Brit.. Foss. Corals, p. 215, Plate XLVIII. Fig. 1, 10. 
Corallum dendroid, branched, the branches inosculating and reticulated in most instances, 
diameter of the branches a line and a half to two lines, calices nearly equal,.circular or nearly 
so, with very thick walls, their diameter about half a line or a little less (counting in the 
‘thickness of the wall). 
This form is distinguished by its branched and usually reticulate form, and its equal or 
sub-equal calices, which open on the surface with hardly any obliquity. 
Locality and Formation.—Abundant in the Corniferous Limestone of Port Colborne and 
Ridgeway. 
54. Favosires puspia (De Blainville). 
Plate VII, Fig. 5. 
Calamopora polymorpha (vay. gracilis) (Goldfuss), Petref:.Germ. Plate XX VIL, fig. 5. 
Alveolites dubia (De Blainville), Dict. Vol. LX, p. 370. 
Favosites dubia (Kdwards and Haime), Pol. Foss. des Terr. Paléoz., p. 243,; and 
Brit. Foss. Corals, p. 216. 
This species is very closely allied to /. reticulata, from which it is unsatisfactorily 
distinguished by the fact that the branches do not coalesce and inosculate, and by the 
inequality in the size of the corallites, a few very small calices being intercalated amongst 
