26 BULLETIN 64, UNITED STATES NATIONAL MUSEUM. 



Haplocrinus granulatus Shumard, Trans. Acad. Sci. St. Louis, II, No. 2, 1866, 

 p. 376 (catalogue name). — Wachsmuth and Springer, Rev. Palseocrinoidea, 

 III, 1886, p. 159 (catalogue name). — Miller, North Amer. Geol. and Pal., 

 1889, p. 252 (catalogue name). 



The original description is as follows : 



It differs from the H. hemisphericus [Pisocrinus milligani Miller and Gurley] in being 

 less angular and having a granulated surface. 



Formation and locality. — Brownsport limestone. Decatur County, 

 Tennessee. 



HAPLOCRINUS MAXIMUS Troost. 



Plate 4, figs. 6, 7, 8. 



Haplocrinites maximus Troost, Proc. Amer. Ass. Adv. Sci., II (read 1849), 1850, 



p. 61 (nomen nudum); MSS., 1850. 

 Haplocrinus maximus Shumard, Trans. Acad. Sci. St. Louis, II, No. 2, 1866, 



p. 376 (catalogue name). — Wachsmuth and Springer, Rev. Palseocrinoidea, 



III, 1886, p. 159 (catalogue name). — Miller, North Amer. Geol. and Pal., 



1889, p. 252 (catalogue name). 



The original description is as follows: 



It is inverted conical, deeply truncated. Superior rim much extended, and the lower 

 rim more prominent. The place for the insertion of the column is much larger than 

 in the other species. 



Formation and locality. — Brownsport limestone. Decatur County, 

 Tennessee. 



Family SYMBATHOCRINIDiE Wachsmuth and Springer. 

 Genus SYMBATHOCRINUS Phillips. 



SYMBATHOCRINUS TENNESSEENSIS Roemer. 



Symbathocrinites tennesseese Troost (in part), Proc. Amer. Ass. Adv. Sci., II, 

 No. 2 (read 1849), 1850, p. 61 (nomen nudum); MSS., 1850. 



Symbathocrinus tennesseensis Roemer, Die Sil. Fauna d. westl. Tenn., 1860, p. 

 55, pi. iv, fig. 6a, b. — Shumard, Trans. Acad. Sci. St. Louis, II, No. 2, 1866, 

 p. 397 (catalogue name). — Miller, North Amer. Geol. and Pal., 1889, p. 285 

 (catalogue name). 



Symbathocrinus tennesseese Wachsmuth and Springer, Rev. Palseocrinoidea, III, 

 1886, p. 166 (catalogue name), p. 174. 



Under the name of Symbathocrinites tennesseese, Troost described 

 two widely different forms. One of these is apparently identical 

 with S. tennesseensis Roemer, and the other is described as a sepa- 

 rate species, 8. troosti. 



Formation and locality. — Brownsport limestone. Troost records 

 this species as from the Siluric of Decatur County and the Carbonic of 

 White's Creek Springs, but the latter is probably an error as, among 

 the Crinoidea, the same species would hardly be likely to persist from 

 Siluric to Carbonic time, and, moreover, the mode of preservation 

 of the specimens more nearly resembles that of material from Decatur 

 County than from White's Creek Springs. 



Cat. No. 39939, U.S.N.M. 



