354 
INYEESAllIA. 
Eigijkes. 
PL XYI. Fig. 4. Fig. 4i, part of a branch, X 12 dia. Fig. 4a, 
the whole branch, nat. size. Upper Greensand : AVarmiustcr. 
D. 3168. 
LIST OF SPECIMENS. 
•D. 3168. A slide containing a Avell- preserved fragment of D. 3167. Upper 
Greensand. Warininster. Baker Coll. Figd. PI. X^l. 
Figs. 4a, b. 
D. 3167. Two zoaria and slide showing zooecial characters. Upper Greensand. 
Warminster. Baker Coll. 
D. 3169. A slide Avith a Avorn, thick central axis. Upper Greensand. 
Warminster. Baker Coll. 
3. Inversaria trigonopora, von Hagenow, 1851. 
Synonymy. 
Inversaria trigonopora, von Ilagenow, 1851. Bry. Maastr. Kr. p. 57, pi. vi. 
fig. 8. 
,, ,, Staring, 1860. Bod. Xederl. vol. ii. p. 396. 
Meliceritites ,, Ubaghs, 1879. Geol. Pal. Limh. p. 222. 
Inversaria tubiporacea, pars, Hamm, 1881. Bry. mastr. Ob. -Sen. p. 39. 
Diagnosis. 
Zoarinni of thick, blunt branches. Zooecia hexagonal. Apertures 
large, triangular, crowded, and irregularly arranged. 
Avicularian apertures slightly longer than those of the zooecia, 
with long, spatulate, mandibular depression. 
Disteibetion. 
Senonian — Maastrichtian : Maastricht. 
Campanian : Biigen. 
Affinities. 
This species differs from I. tuhiporacea by the triangular shape 
and larger size of the apertures. 
LIST OF SPECIMENS. 
D. 3405. A branched zoarium (in tube). Maastrichter Kreide. Maastricht. 
Van Breda Coll. 
A well-preserved specimen (on slide). ISIucronatenkreide. Eiigeii. 
Laur Coll. 
D. 6291. 
