Bkkde.] Carboniferous Invertebrates, 17 



short time becoming a polyp exactly like the first and connected 

 with it. In a little while such a coral will form a cluster. 

 Some kinds bud much more abundantly than others, when the 

 cluster becomes a solid mass and is called a compound coral. 



At Fort Scott there is a large limestone stratum almost en- 

 tirely made up of a coral called Chsetetes milleporaceous. At the 

 time when the corals were living it was a small coral reef. 

 The other fossil corals in Kansas are much more rare, though 

 large masses of two other families are often found. 



LOPHOPHYLLUM. 



Milne-Edwards and Haime, Brit. Foss. Corals, pi. LXVI, (1850). 



Lophophyllum profundum. Plate II, figs. 7-7b. 



( '1/ atlta.ro iii a profunda Milne-Edwards and Haime, Mon. des Polyp. Foss., 

 ' p. 323, (1851): etc. 



Cyathaxonia prolifera McChesney, Descr. New Pal. Foss., p. 75, (1860): 

 ibid., pi. 11, ff. 1-3, (1865); etc. 



Lophophyllum proliferum Meek, U. S. Geol. Surv. Neb., p. 149, pi. v, 

 ff. 4a, b, (1872): etc. 



Lophophyllum profunda Foerste, Bull. Den. Univ., in, p. 136, (1888): 

 Worthen, Geol. Surv. 111., vni, p. 79, pi. x, ff. 14, 14a, (1890). 



Meek's description, in part: " Corallura elongate-conical, 

 more or less curved, or sometimes nearly straight, tapering to a 

 pointed base ; epitheca very thin, with more or less distinct 

 encircling wrinkles and stria? of growth, crossed by longitudinal 

 striae ; rarely sending off a few spines near the base. Calice 

 nearly, or quite circular, moderately deep ; columella promi- 

 nent, compact in texture, compressed above, with its longer 

 axis coincident with the general curve of the corallum ; septa 

 from about 30 to 50, every alternate one being generally con- 

 siderably shorter than the others, which latter are extended to the 

 columella, near which they are sometimes a little tortuous." 

 Columella formed by the enlarged prolongation of one of the 

 septa; tabulae moderately remote, arching from the columella 

 outward and downward, sometimes a little upwards at first. 

 Septa striated obliquely upward. Columella striated by some- 

 what revolving longitudinal stria 1 . Measurements: Length, 

 30 mm. ; width of calyx, 9 mm. 



Range and distribution : Upper and Lower Coal Measures ; 



