55 
61. ALVEOLITES (CENITES?) DisTANS (Nicholson), 
Alveolites (Cenites ) distans, (Nicholson), Geological Magazine, Feb., 1874. 
g g 
Corallum ramose, the branches cylindrical, of a diameter of from a line and a half +to 
two lines, dividing dichotomously at intervals of about half an inch, but not anastomosing. 
Corallites oblique to the surface, with exceedingly thick walls. Calices exceedingly minute, 
about one-eighth of a line in their longest diameter, sub-circular, transversely oval, or sub- 
triangular, level with the surface, and having the lower lip hardly or not at all prominent. 
Intervals between the calices proportionately very wide—about half a line. (Fig. 13.) 
At first sight, this remarkable species has very much the appear- 
ance of a Cwnites (such as ('. intertextus) or of the uncertain form 
Alveolites (2) seriatoporoides (Edw. and H.) It is, however, distin- 
. guished from the former by the not prominent and not markedly 
>| triangular calices, and from the latter (which is almost certainly not 
| an Alveolites) by the fact that the corallites are arranged obliquely to 
| the surface. 
|  Alveolites distans is readily distinguished from the other ramose forms 
| of the genus by the exceedingly small size of the calices, and the pro- 
portionately great width of the intervals between them, and by the fact 
that the calices are level with the general surface, or nearly so. There 
bs is thus produced the fallacious appearance that the corallites are im- 
or bedded in an abundant cconenchyma. 
a Locality and Formation.—Rare in the Corniferous Limestone of 
Fig. 13. ' 
Fragment of Alveolites Port Colborne. 
distans (Nicholson), natural 
size, a Portion of the same 
enlarged. Corniferous. 
62. ALVEOLITES RAMULOSA (Nicholson). 
(Plate VII. Fig. 3.) 
Alveolites ramulosa (Nicholson), Geological Magazine, Feb., 1874. 
Corallum reticulated, composed of flattened sub-cylindrical or cylindrical stems from two- 
thirds of a line to one and a half linesin diameter, branching with great frequency, and inter- 
lacing to form a close network, the meshes of which vary from one to two lines in diameter. 
Corallites very minute, about three in the space of a line measured diagonally, the calices very 
small, oval or triangular, separated by intervals of rather more than a third of a line, and 
about a sixth to an eighth of a line in their longest diameter (Fig. 14, a and 5). 
This species represents in the genus Alveolites, the anastomosing F. reticulata in the 
genus Favosites. It is distinguished from A. labiosa, with which it is structurally most 
closely allied, not only by the reticulated form of the corallum, but also by the much more 
minute corallites. It differs from A. confevta in forming a network, in the corallites being 
more remote, and in the fact that the calices are distinctly sub-triangular or even triangular, 
as a general rule. 
Locality and Formation.—Not very uncommon in the Corniferous Limestone of Port 
Colborne, and Lot 6, Con. 1. Wainfleet. 
63. ALVEOLITES Briutinast (Nicholson). 
(Plate VII. Fig. 1.) 
Alveolites Billingsi, (Nicholson), Geological Magazine, Feb., 1874. 
Corallum reticulated, composed of cylindrical or sub cylindrical stems, from two to three 
lines in diameter, which branch dichotomously, for the most part at angles of about 40°, and 
anastomose to form an open network, the meshes of which are oval or diamond-shaped, and 
vary in length from three lines to three quarters of an inch. As in the preceding species, the 
network is not always in a single plane, and the branches often coalesce at the nodes of the 
\ 
