824 BULLETIN 92, UNITED ' STATES NATIONAL MUSEUM. 



MONOGRAPTUS coNVOLUTus var. COMMUNIS Lapworth. See Monograptus communia. 



Monograptus convolutus coppingeri Etheridge. 



Monograptus convolutus var. Coppingeri Etheridge, Quart. Jour. Geol. Soc. Lon- 

 don, 34, 1878, p. 577, pi. 25, fig. 1. 



Lomatoceras convolutum coppingeri Gurley, Jour. Geol., 4, 1896, p. 100 (gen. 

 ref.). 



Niagaran: Thank God Harbor, Arctic America. 



Monograptus delicatulus Elles and Wood. 



Monograptus delicatulus Elles and Wood, Monog. British Grapt., 8, 1911, p. 478, 



pi. 47, figs. 2aandb. 

 Silurian: South Scotland (Llandovery) ; twelve miles northeast of Ketchum, . 



Idaho [Ulrichj. 



Monograptus denticulatus Tornquist. 



Monograptus denticulatus Tornquist, Mon. Scanian Rastrites beds, 1899, p. 18, 



pi. 3, figs. 19-23. Elles and Wood, Monog. British Grapt., 8, 1911, p. 474, 



pi. 48, figs. 2a-f. 

 Silurian: South Scotland (Llandovery); twelve miles northeast of Ketchum, 



Idaho [Ulrich]. 



Monograptus distans (Portlock). 



Graptolithus (Prionotus) sedgwickii var. distans Portlock, Geol. Hep. London- 

 derry, 1843, p. 319, pi. 19, figs. 4a and b. 



Monograptus distans Elles and Wood, Mon. British Grapt., 8, 1911, p. 433, pi. 43, 

 figs. 6a-d. 



Silurian: Scotland and Ireland (Upper Llandovery); Blaylock Mountain, Mont- 

 gomery County, Arkansas (Blaylock) [Ulrich]. 



MONOGRAPTUS ELEGANS Emmons. See Monograptus? elegans. 



Monograptus flemingi (Salter). 



Graptolithus Flemingii Salter, Quart. Jour. Geol. Soc., 8, 1852, p. 390, pi. 21, figs. 

 5a, b, 6, 7a, b. 



Monograptus Flemingii Lapworth, Geol. Mag., 2d ser., 3, 1876, p. 504, pi. 20, 

 fig. 8. Tullberg, Skanes Grapt., Svensk. Geol. Undersokn., ser. C, No. 55, 

 1883, p. 23, pi. 2, fig. 25. Elles, Quart. Jour. Geol. Soc., 46, 1900, p. 402, 

 figs. 11 and 14. Elles and Wood, Mon. British Grapt., 8, 1911, p. 425, pi. 43, 

 figs. 5a-d. 



Silurian: England and Scotland (Upper Wenlock); twelve miles northeast of 

 Ketchum, Idaho [Ulrich]. 



MONOGRAPTUS GRACILIS Whitfield. See Nemagraptus gracilis. 



Monograptus gregarius Lapworth. 



Graptolites Nilssoni Harkness, Quart. Jour. Geol. Soc., 7, 1851, p. 61, pi. 1, figs. 

 7a-d. Nicholson, Quart. Jour. Geol. Soc., 24, 1868, p. 537, pi. 20, fig. 19. 



Monograptus gregarius Lapworth, Geol. Mag., dec. 2, 3, 1876, p. 317, pi. 10, figs. 

 12a-c; Cat. West Scott. Foss., 1876, pi. 1, fig. 7; Proc. Belfast Nat. Field 

 Club, 1877, p. 131, pi. 5, fig. 4. Tornquist, Siljansomr. Graptol. Acta Univ., 

 Lund., 28, 1892, p. 8; Monograptidae of Scanian Pvastrites Beds, Lunds 

 Univ. Arssk., 35, pt. 2, 1899, p. 4, pi. 1, figs. 1-6. Elles and Wood, Mon. 

 British Grapt., 8, 1911, p. 365, pi. 36, figs. 3a-d. 



Silurian: Scotland, Ireland, Wales (Llandovery Birkhill); Blaylock Mountain, 

 Montgomery County, Arkansas (Blaylock) [Ulrich]. 



