CORALS FROM BRITISH DEVONIAN BEDS. 499 
to leave its place an open question, pending the discovery of more 
perfect material. 
Loc. Mudstone Bay, the same as the preceding. 
LopHoPHYLLUM, sp.? (Plate XXI. figs. 3 a, 3 0.) 
This pretty little coral is seen as a polished section, the diameter 
of which is 2 inch. It has 64 septa, of two orders. They are 
thick externally, appearing granulated (or striated?) laterally, 
but more slender near the centre; those of the second order reach 
half way. <A large primary septum extends slightly beyond the axis, 
and is clavate at its inner extremity. The septa on each side of 
the latter form a fasciculate group, and are irregularly soldered at 
their edges, the same tendency to coalesce being observable in the 
septa opposite the primary. ‘The endothecal dissepiments are fairly 
’ numerous, and a delicate epitheca can be recognized. 
Obs. It is with much hesitation that I refer this specimen to 
the genus Lophophyllum. The septum in the fossula of a true 
Zaphreniis is always less developed than the remainder. The fossil 
has not the aspect of a Hallia, but the clubbed end of the primary 
septum appears to play the part of an essential columella. 
Loc. From Triassic conglomerate, Hole Head, near Teignmouth, 
a spot which has produced a very large number of the Devonian 
corals of Devonshire. 
ZAPHRENTIS, sp. nov.? (Plate XXI. figs. 4a, 4b, 4¢.) 
This is the lower portion only of a tall and, so far as one can see, 
straight Zaphrentis, that measures 54 inches in length*, both ends 
being rather imperfect. On the floor, exposed by fracture, there are 
76 septa, of two orders. The principal ones are rather flexuous and 
nearly reach the centre as low crests on the tabule. The secon- 
daries, as in all the true congeners, are minute, in this case under a 
millimetre. The septal fossula is well characterized, placed on the 
side of least curvature, and is produced as a shallow groove beyond 
‘the central axis. The epitheca is rather thin. 
Obs. It may appear somewhat paradoxical to speak of “ the side 
of least curvature” in a coral described as being straight. Neverthe- 
less, reasoning from all analogy, we may probably be safe in assuming 
that, where the planes of the tabule are inclined to the longitudinal 
axis, the side towards which they dip does correspond morphologi- 
cally to the side of least curvature. 
Loc. Hill-Park quarry, Dartington, in Middle Devonian limestone. 
ZAPHRENTIS, sp. nov.? (Plate XXI. figs. 5a, 5 0.) 
This coral has the walls of its calice much broken down, and its 
base imperfect. When complete, it may have measured nearly 3 
inches in height, and is covered by a strong epitheca. The calice, 
which is circular, is 14 inch in diameter. There are 50 principal 
septa, which extend irregularly to the centre; minute secondary 
* Only the lower part of the coral is figured. 
