818 BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 
LICHENOPORA VERRUCOSA Philippi, 1843. 
Plate 131, figs. 10-13, and plate 130, figs. 12, 13. 
1843. Ceriopora verrucosa Philippi, Beitrage zur Kenntniss der Tertiarversteinerungen 
des nordwestlichen Deutschlands, p. 67, pi. 1, fig. 12. 
1864. Eeteroporella verrucosa Reuss, Zur Fauna des deutschen oberoligocans, Sitzungs- 
berichte der k. Academie der Wissenschaften, Wien, vol. 50, pt. 2, p. 68, pi. 7, 
figs. 1, 2. 
1865. Eeteroporella verrucosa Reuss, Die bryozoen des deutschen Septarienthones, 
Denkschriften der k. Akademie der Wissenschaften, Wien, vol. 25, p. 201 (sec. 85). 
1869. Eeteroporella verrucosa Reuss, Zur Fossilen der Oligociinschichten von Gaas, 
Sitzungsberichte der k. Akademie der Wissenschaften, vol. 59, p. 34. 
1884. Eeteroporella verrucosa Schreiber, Beitrage zur Fauna des mitteloligoeahen 
Grunsandes aus dem Untergrunde Magdeburgs, vol. 2, p. 11, pi. 2, fig. 16. 
Description, — The zoarium is simple or composite. When it is simple it is 
diseoiclal, very convex ; the lower face is convex, pedunculate and the basal lamella 
is striated concentrically. The central area is large and is occupied by the ovicell. 
The fascicles are salient bi- or tri-serial, not continued as far as the zoarial border. 
The shorter ones are the more exterior. The tubes are polygonal and smaller than 
the cancelli. They have no visor. The cancelli are larger in the central area and 
smaller between the fascicles. The spinules are quite long, scattered, and very 
fragile. The ovicell is placed under the central area. 
Width of the fascicles 0.20 mm. 
Diameter of the central cancelli 0.16 mm. 
Measurements. — Zoarial diameter 6.00 mm. 
Diameter of the interfascicular cancelli 0.12 mm. 
Diameter of the tube 0.10-0.12 mm. 
Affinities. — The zoaria observed are simple and discoidal; sometimes they are 
superposed (as in Domvpora). 
This species much resembles Lichenoporci defranciana Michelin, 1848, of the 
Paris Lutetian. It differs from it in its zoarium, which is not supported by a 
large peduncle and not turbinate, and in its convex and hollow lower face. 
The comparison with German Oligocene fossils is always a little doubtful, 
these fossils never having been distributed to the principal museums of the world. 
Occurrence, — Middle Jacksonian: Wilmington, North Carolina (rare); near 
Lenuds Ferry, South Carolina (rare). 
Geologic distribution, — Middle and Upper Oligocene of Germany (Reuss) ; 
Stampian of Gaas in France (Reuss). 
Plesiotypes. — Cat. Nos. 65363, 65454, U.S.N.M. 
LICHENOPORA GRIGNONENSIS Milne-Edwards, 1838 
Plate 129, figs. 1-11. 
1823. Liclxenopora crispa Defrance, Dictionnaire des Sciences naturalles, vol. 26, p. 257. 
1838. Tubulipora grignonensis Milne-Edwards, Memoire sur les Tubulipores, Annales des 
Sciences naturalles, Paris, vol. 9, p. 13, pi. 13, fig. 2. 
1845. Tubulipora grignonensis Michelin, Iconograpliie Zoophytologique, Paris, p. 169, 
pi. 46, fig. 7. 
