BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 413 



DICELLOMUS Continued. 



Schmidtia Zittel (part) (not Volborth), Handb. Pal., 1, 1880, p. 665. 

 Obolella Hall and Clarke (part), llth Ann. Rep. State Geol. New York, 1892, pp. 

 240-241; 45th Ann. Rep. New York State Mus., 1892, pp. 556-557; Pal. New 

 York, 8, pt. 1, 1892, pp. 66-73. 



Dlcellomus nanus (Meek and Hayden). 



Obolella nana Meek and Hayden, Proc. Acad. Nat. Sci. Philadelphia, 13, 1862, 

 p. 435; Amer. Jour. Sci., 2d ser., 33, 1862, p. 73, figs, la, b, 2a, b. Billings, 

 Geol. Surv. Canada, Pal. Foss., 1, 1862, pp. 67, 68. Meek and Hayden, 

 Smiths. Cont. Knowl., 172, Pal. Upper Missouri, pt. 1, 1865, p. 4, pi. 1, figs. 

 3a-3d. Whitfield, IT. S. Geogr. and Geol. Surv. Rocky Mountains Region, 

 Rep. Geol. Res. Black Hills of Dakota, by Newton and Jenney, 1880, pp. 

 340-341, pi. 2, figs. 14-17. Walcott, Bull. U. S. Geol. Surv., 30, 1886, p. 111. 

 Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 69, 70. 



Dicellomus nanus Walcott (part), Mon. U. S. Geol. Surv., 32, pt. 2, 1899, p. 447, 

 pi. 60, figs. 3a-d (not fig. 3); Proc. U. S. Nat. Mus., 28, 1905, pp. 314-315; 

 Mon. U. S. Geol. Surv., 51, 1912, p. 573, pi. 53, figs. 1, la-1, 2, 2a, 3, 3a-d. 



Lower Ordovician: Near Buffalo Fork Peak, Uinta County, Wyoming. Also 

 Upper and Middle Cambrian of Montana, Missouri, etc. 



Plesiotypes.Cat. No. 31903, 51908, U.S.N.M. 



DICHOGRAPSUS Salter. See Dichograptus Salter. 



DICHOGRAPSUS ARANEA Salter. See Dichograptus octobrachiatus. 



DICHOGRAPSUS FLEXILIS Hall. See Clonograptus flexilis. 



DICHOGRAPSUS LOGANI Nicholson. See Loganograptus logani. 



DICHOGRAPSUS MILESI Hall. See Clonograpttis milesi. 



DICHOGRAPSUS OCTOBRACHIATUS Nicholson. See Dichograptus octobrachiatus. 



DICHOGRAPSUS OCTONARIUS Hall. See Dichograptus octonarius. 



DICHOGRAPSUS RAMULUS Gurley. See Temnograptus? ramulus. 



DICHOGRAPSUS REMOTUS Gurley. See Clonograptus remotus. 



DICHOGRAPSUS RIGIDUS Hall. See Clonograptus rigidus. 



DICHOGRAPTUS Salter. 



Genotype: DichograpsUs aranea Salter=Graptolithus octobrachiatus Hall. 



Dichograpsue Salter, Quart. Jour. Geol. Soc. London, 19, 1863, p. 139. Nicholson, 

 ibid., 24, 1868, p. 9, 127. Carnithers, Geol. Mag., 5, 1868, p. 73, 129. Nichol- 

 son, Mon. British Grapt., 1872, p. 106; Ann. Mag. Nat. Hist., 4th ser., 11, 

 1873, p. 138. 



Dichograptus, Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 217; rev. 

 ed., 1870, p. 251. Zittel, Handb. Pal., 1, 1879, p. 299. Tullberg, Sver. Geol. 

 Unders., ser. C, No. 55, 1883, p. 12. Hermann, Geol. Mag., dec. 3, 3, 1886, 

 p. 21. Barrois, Ann. Soc. Geol. du Nord, 21, Lille, p. 108. Nicholson and 

 Murie, Geol. Mag., dec. 4, 2, p. 532, fig. Wiman, Bull. Geol. Inst. Univ. 

 Upsala, 2, pt. 2, 1896, p. 265. Koken, Die Leitfossilien, Leipzig, 1896, p. 

 328. Roemer and Freeh, Leth. geog., Leth. Pal., 1897, p. 594. Elles, Quart. 

 Jour. Geol. Soc. London, 54, 1898, p. 483. Zittel-Eastman Textb. Pal., 1, 

 1900, p. 118. Elles and Wood, Mon. British Grapt. Pal. Soc., 1902, p. 76. 

 Ruedemann, Mem. New York State Mus., 7, pt. 1, 1904, p. 634. Grabau and 

 Shinier, N. A. Index Fossils, 1, 1906, p. 28. Ruedemann, Zittel-Eastman 

 Textb. Pal., 2d ed., 1913, p. 129. 



