172 
G. W. Lee — Trepostomata. 
Quarry, 3J miles W.N.W. of Lowick [25574] ; at a quarry three-eighths of a mile 
N.E. of the Demesne, Gunnerton [25577] ; and somewhat doubtfully at Closehead 
Old Lime Quarry, three-quarters of a mile E. of Otterburn Church [25575]. In 
Cumberland, it was collected from the bed of a streamlet at Longcleuchside, and at 
Hirsthead Sike, Liddel Water [R. 3043, R. 3237]. Tn Scotland, it occurs at Lawston 
Linn. All these localities seem to be close to each other in stratigraphical position, 
which in the main may be assigned to the D L zone of the Yisean. 
From the Irish fauna a few examples of Tabulipora have come under observation, 
which present the same general characters as T. sparsitabulatci and yet show certain 
differences of apparently secondary importance. The illustrations given in pi. xv., 
fig. 30, and pi. xvi., fig. 2, are from a specimen from Tyrone—the precise locality 
is not known—preserved in the Collections of the Geological Survey of Ireland. At 
first sight the close beading of the walls might determine its allocation to a distinct 
species. As, however, a specimen collected by Mr. W. B. Wright at Kinlough, Bundoran 
(Upper Calp Shale), shows the co-existence of both close and wide beading within the 
same zoarium, the Irish representatives may tentatively be placed here until the 
taxonomic value of this varietal character can be better estimated. 
In the South-West Province specimens of this species were collected by 
Mr. J. Pringle from cliffs on the west and south sides of Bullslaughter Bay, 1^ miles 
W.S.W. of Bosherston. The horizon is Dl [Pg. 1964, Pg. 2078]. 
Observations. —Considerable difficulty was experienced in separating this species 
and the next from several forms into which they appear to merge. Owing to the 
insufficiency of materials it is not possible to ascertain the degree of relationship of 
these apparently allied forms, which are discussed more fully in the observations on 
the next species. 
Tabulipora crassimuralis sp. nov. 
Plates XIV, fig. 8 ; XVI, figs. 5, 6. 
Description. —(a.) External characters. In the materials at hand the zoarium is 
hollow, from 3 to 12 mm. thick, cylindrical or flattened. The shape of the apertures 
varies from sub-oval to sub-polygonal. They have generally thick partitions, and 
number about forty along a distance of 1 cm. Small acanthopores can be seen by means 
of a lens. 
