TUBICOLAR ANNELIDA. 
CORNULITES, Schlotheim. 1820. 
For the discussion of the nature and biological relations of forms referred to 
this genus, see the following authors; 
1820. Schlotheim, Cornulites serpularius. Petrefactenkunde, p. 378, pi. xxix, 
fig. 7. 
1834. Kloeden, Axis of Trilohites. Verstein. der Mark Brandenb. 
1839. J. SowERBY, Cornulites {incertce, sedis). Murchison’s Silurian System. 
1845. De Verneuil and Keyserling, Columns of Cystideans. Russie et Oural. 
1847. Hall, Tentaculites ? Pal. N. Y., vol. i. 
1848. Conrad, Cornulites {incertce sedis). Jour. Acad. Nat. Sci. 
1851. McCoy, Cornulites {incertce sedis). (“Probably Echinodermata or Annu- 
latar) British Pal. Fossils, p. 63. 
1852. Hall, Cornulites {incertce sedis). Pal. N. Y., vol. ii. 
1853. Keyserling, Corals. Bull, de la Soc. Geol. 
1856. Shumard, Tentaculites. Geol. Report of Missouri. 
1859. Salter, refers Tentaculites and Cornulites to the Annelida. Siluria, 3d 
Edition, pp. 221 and 229.^ 
1864. Ludwig, Pteropods. Palseontographica. 
1865. Meek and Worthen, Tentaculites. Proc. Acad. Nat. Sci. Phil. 
1867. Barrande, Cornulites {Annelida). Syst. Sil. de la Boheme. 
* Under the head of Annelides of the Older Silurian Strata, Mr. Salter uses the following' language in 
the text of Siluria, page 221, Third Edition. 1859: 
“The Tentaculites and Cornulites of the early pi'imeval strata nuist also be mentioned as remains of 
animals of this order. They were worms with shelly tabes like those of Serpula, but distinguished easily 
by their annulated form and cellular structure.!” 
“t These fossils, Tentaculites and Coi'milites, have been assigned to various groups of animals, the notion 
that they wei-e parts of crinoidal creatures being the most genei-ally accepted. They were, however, shelly 
tubes, of a highly complex cellulai- structure, not jointed tentacles or stems; and could, by no means, be 
parts of such animals.—.r. w. s.” 
