196 
HETEEOPOiaD.E. 
Var. coalescens, Rss. 
D. 7400. Zoarium flabellate with anastomosing branches ; it is 7-12 mm. broad 
by 7 mm. thick. The zoarium gives off above short cylindrical 
branches. Mesopores in a single circle around the apertures. 
About four mesopores in each circle. Upper Greensand — zone of 
Schl(enbachia rostrata. Ilaldon, Devon. Dequeatbed Vicar)' Coll. 
Figd. PI. YIII. Fig. 5. 
D. 7401. A more complex zoarium, tending to form two irregularly Habellate 
branches, each connected by cross branches. Branches broad with 
small lunules. Upper Greensand — zone of Schloenbachia rostrata. 
Haldon, Devon. Bequeathed Yicary Coll. 
D. 7409. Part of a zoarium, 32 mm. high by 28 mm. wide at the top ; one or 
two lunules left between the united branches. Mesopores as in 
D. 7400. Upper Greensand — zone of Schloenbachia rostrata. 
Haldon, Devon. Bequeathed Yicary Coll. 
D. 7410. Fragment of a zoarium, similar to D. 7409. Upper Greensand — 
zone of Schloenbachia rostrata. Haldon, Devon. Bequeathed 
Yicary Coll. 
B. 7417. Part of another similar zoarium. Upper Greensand — zone of 
Schloenbachia rostrata. Haldon, Devon. Bequeathed Yicar)’ Coll. 
Yar. cylindrica. 
D. 7405. Part of a small zoarium with narrow, sub-cylindrical branches, 
5x4 mm. in diameter. Upper Greensand — zone of Schloenbachia 
rostrata. Haldon, Devon. Bequeathed Yicar)* Coll. Figd. 
PI. IX. Fig. 2. 
D. 7413. A branch 22mm. long; it is 11mm. wide by 7mm. thick at the 
base ; the lower part of the branch is 7 mm. in diameter, and 
the upper part of the branch below the last remaining bifurcation 
is 5 mm. in diameter. Upper Greensand — zone of Schloenbachia 
rostrata. Haldon, Devon. Bequeathed A’icary Coll. 
D. 7414. A branch 22 mm. long, containing the base and the first bifurcation ; 
it is 4 X 3 mm. in diameter. Upper Greensand — zone of Schloen- 
bachia rostrata. Haldon, Devon. Bequeathed Yicary Coll. 
? D. 7419. A very worn branch ; it has one bifurcation, of which one arm is 
3 X 3 mm. in diameter and the other 5 x 4 mm. Upper Greensand 
— zone of Schloenbachia rostrata. Haldon, Devon. Bequeathed 
Yicary Coll. 
6. Heteropora subaequiporosa/ Gregory, 1909. 
Synonymy. 
Heteropora suboequiporosa, Gregory, 1909. New Cret. Bry. : Geol. Mag. dec. v. 
vol. vi. p. 64. 
Diagnosis. 
Zoarium funnel-sliaped, composed of a thick layer around a 
hollow axis. 
Named from the slight difference in size between the zocccia and mesopores. 
