176 



EOCENE AND LOWER OLIGOCENE CORAL FAUNAS. 



quite near to the calicular margin. Upper portion of the wall perforate. 

 "Within, a dense deposit entirely fills the lower portion of tlie comlliim. 

 Near the wall there is a considerable amount of vesicular endotheca. 

 There are also inclined dissepiments, sloping from the outside downward. 

 Septa in four cycles, not exsert. Their upper margins reach about to the 

 same level as the upper limit of the wall. The septa of the first and second 

 cycles reach the columella, those of the fourth cycle meet in front of the 

 third, which do not always reach as far as the fusion of the former. From 

 the point of fusion of the fourth cycle a plate extends to the columella. 

 The upper margins of the septa are entire, their inner margins jagged, faces 

 granulate; perforate near the wall. Columella large, well developed, 

 spongy. 



Localities. — Red Bluft' ;uid Carson Creek, Wayne County, Mississippi. 



Geologic occurrence. — Vicksburgiaii stago. Red Bluff" beds. 



Types. — From collection of T. H. Aldrich in the United States National 

 Museum. 



This species has considerable resemblance to B. eaidifera (Conrad), Imt 

 is much more elongate and more slender, and I have been unable to find 

 dissepiments in the latter species. 



Balanophyllia caulifera (Conrad). 

 PI. XX, figs. 15 to 18. 



1847. Turhinolia caulifera Conrad. Proc. Acad. Nat. Sci. Phila., Vol. Ill, p. 290. 



1848. Turhinolia caulifera Conrad. Jour. Acad. Nat. Sci. Pbila., 2d ser., Vol. I, p. 127, 



pi. siii, tigs. 33 and .il. 

 1855. Onteode.s caulifera Conrad. Proc. Acad. Nat. Sci. Phila., Vol. VII, ]}. 203. 

 1800. Turhinolia caulifera Conrad. Check Li.st, p. 20. 

 18!)5. Eupsammia caulifera Vanghan. Am. (ieol., Vol. XV, p. 223. 

 1890. Balanophyllia caulifera Vaughan. Bull. U. S. Geol. Survey No. 142, p. 52. 



The following is ;i, description of the typical form of the species: 

 Corallum conical, usually straight, shghtly compressed; cross section 

 elliptical, attached by a short nipple-like pedicel in its early stages. Costse 



