of Salem, and 11%, m. S. E. of Blackman, Rutherford County, Tennessee. 
Ridley limestone: Sulphur Springs, 4 m. N. W. of Murfreesboro, Tennessee. 
Holotype: U.S. Nat. Mus. 
Paratypes: 239-2, 3, 4, 5; 240-1, 23. Indiana University. 
TREPOSTOMATA. 
Family Monticuliporidae Nicholson (emended Ulrich). 
The most important character of this family as defined by Ulrich is the 
cecurrence of the cystiphragms in the zooecial tubes. In Mesotrypa and 
Orbignyella these structures appear as curved diaphragms. The zoarium 
has a lamellate, massive, ramose, bifoliate incrusting or frond method of 
growth. 
Genus Monticulipora D’Orbigny. Genotype: Monticulipora D’Orbigny, 
Prodr. Pal., 1, 1850, p. 25. Edwards and Haime, Mon. British Foss. Corals, 
Pal. Soc., 1854, p. 264, footnote. Pictet, Traiti de Pal., 2d ed., 4, 1857, p. 445. 
Milne-Edwards, Hist. at. des Corall, 3, 1860, p. 272. Eichwald, Leth. Rossica, 
1, 1860, p. 492. Salter, Cat. Camb. Sil. Foss., 1873, p. 108. Dekoninek, Nouy. 
Rech. Anim. Foss. Terr. Carb. Belgique, 1872, p. 141. Lindstrom, Ann. Mag. 
Nat. Hist., 4th ser., 18, 1876, p. 5. Nicholson, Pal. Tabulate Corals, 1879, p. 
269. Zittel Handb. Pal., 1. 1860, p. 614. Nicholson, genus Monticulipora, 
1881, p. 99. Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, pp. 153, 232. 
Roemer, Leth. geog., pt. 1, Leth. Pal., 1883, p. 468. Foord, Contr. Micro- 
Pal. Cambro-Sil., 1883, p. 7. Frech, zeits. d. d. geol. gesell., 37, 1885, p. 951. 
Waagen and Wentzel, Pa. Indica, 13th ser., 1886, p. 874. James, Amer. 
Geol., 1, 1888, p. 386. James and James, Jour. Cin. Soc. Nat. Hist., 10, 1888, 
p. 158. Miller, N. A. Geol. Pal., 1889, p. 197. Reminger, Amer. Geol., 6, 1890, 
pp. 102-121. Ulrich. Geol. Sury. Illinois, 8, 1890, pp. 370, 407; Amer. Geol., 
10, 1892, p. 57; Ulrich, Geol. Minnesota, 3, 1893, p. 217. James, Jour. Cin- 
cinnati Soc. Nat. Hist., 15, 1893, p. 155; Zittel’s Textb. Pal. (Engl. ed.), 
1896, p. 103, 272. Lindstrom, Kongl. Sven. Vet. Akad. Handb., 32, No. 1, 
1899, p. 52. Sardeson, Neues Jahrb, Min., Geol. Pal., Beilage-Band, 10, 
1896, p. 347. Simpson, 14th Ann. Rep. State Geol. New York for eae 
1897, p. 577. Nickles and Bassler, Bull. U. S. Geol. Sury., 1738, 1900, p. 28. 
Procta, Syst. Sil. du Centre Boheme, 8, pt. 2, 1902, p. 312. Ulrich and mie 
ler, Smiths. Mise. Coll., Quart., 47, 1904. p. 15. Grabau and Shimer, N. A. 
Index Fossils, 1, 1907, p. 127. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. 
Indiana, 1908, p. 750. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 179; Zittel- 
EKastman Textb. Pal., 1913, p. 331. 
Peronopora (in part) Nicholson, genus Monticulipora, 1SS1, p. 215. 
The early reference given refer to Monticulipora in its broader sense at 
the time it contained a heterogeneous collection of species. Its present lim- 
itation is due to the work of Ulrich, which places the genus on a definite 
basis with the following principal differentiating characters: Cystiphragms 
occur both in the peripheral and axial region; the walls of the zooecia and 
mesopores haye a granulose structure; acanthopores are usually numerous 
