68 CAMBRIAN BRACHIOPODA. 



Present reference. 



nanus [Dicellomus], Walcott [1899, p. 447] Lingulella desiderata (in part) and Dicello- 



mus nanus (in part). 



Walcott [1905a, pp. 314-315] Dicellomus nanus. 



nathorsti [Lingulella?], Linnarsson [1876, pp. 15-16] Lingulella nathorsti. 



nautes [Protorthis], Walcott [lg05a, pp. 283-284] Nisiisia (Jamesella) nautes. 



neboensis [Acrotreta], Walcott [1905a, pp. 300-301] Acrotreta neboensis. 



nebulosa [Genre? sp.], Barrande [1868a, pp. 105-106] Orbiculoidea contraria. 



Barrande [1868b, pp. 693-694] Do. 



Neobolus Hall and Clarke [1892a, p. 245] Neobolus. 



Hall and Clarke [1892b, p. 561] Do. 



Hall and Clarke [1892c, p. 84] Do. 



Oeblert [1887, p. 1263] : Do. 



Waagen [1885, pp. 756-758] Do. 



Walcott [1908d, pp. 72-76] Do. 



Walcott [1908e, PI. XI, and pp. 142 and 144] Do. 



Neobolus wartbi Freeh [1897, PL lA, figs. 5a-b] Neobolus warthi. 



Hall and Clarke [lS92a, p. 245] Do. 



Hall and Clarke [1892b, p. 561] Do. 



Hall and Clarke [1892c, p. 84] Do. 



Oehlert [1887, p. 1263] Do. 



Waagen [1885, pp. 758-759] Do. 



Waagen [1891, PL II, figs. 5-9] Do. 



Neobolus wynnei Waagen [1885, pp. 759-761]. . '. Do. 



Waagen [1891, PL II, figs. 10 and 11] Do. 



newberryi [Eoorthis], Walcott [190Sd, p. 105] Eoorthis newberryi. ' 



newtonensis [Orthis], Weller [1903, pp. 113-114] Eoorthis newtonensis. 



newtonensis [Orthis (Plectorthis)], Walcott [1905a, p. 267] Do. 



nicholsoni [Acrotreta?], Davidson [1868, pp. 313-314] Acrotreta nicholsoni. 



Davidson [1871, pp. 343-344] Do. 



nicholsoni [Acrotreta], Davidson [1883, p. 213] Do. 



Hall and Clarke [1892c, p. 103] Do. 



Swanston [1877, PL VII, figs. 21a-c] Do. 



Swanston [1886, PL VII, figs. 21a-c] Do. 



nicholsoni [Acrotreta sp. cf,], Matley [1902, p. 142] Acrotreta sabrinse. 



nicholsoni [Lingulella], Callaway [1874, p. 196] Lingulella nicholsoni. 



Callaway [1877, pp. 668-669] Do. 



Davidson [1883, pp. 208-209] Do. 



nicholsoni? [Lingulella], Matley [1902, p. 141] Do. 



ninus [Obolus tetonensis], Walcott [1905a, p. 328] Obolus tetonensis ninus. 



nisus [Iphidella], Walcott [1905a, p. 305] Micromitra nisus. 



Nisusia Grabau and Shimer [1907, p. 210] Nisusia. 



Walcott [1905a, pp. 247-248] Do. 



Walcott [1908e, PL XI, and pp. 142 and 147] Do. 



Nisusia alberta Walcott [1905a, pp. 248-249] Nisusia alberta. 



Walcott [1908c, p. 245] Do. 



Nisusia festinata Grabau and Shimer [1907, p. 211] Nisusia festinata. 



Walcott [1905a, pp. 249-251] Do. 



Nisusia festinata transversa Walcott [1905a, p. 251] Nisusia festinata transversa. 



Nisusia rara Walcott [1908d, p. 97] Nisusia rara. 



Nisusia (Jamesella) Walcott [1905a, p. 252] '.Nisusia (Jamesella). 



Walcott [190Se, PL XI, and pp. 142 and 147] Do. 



Nisusia (Jamesella) amii Walcott [1905a, p. 252] Nisusia (Jamesella) amii. 



Nisusia (Jamesella) argenta Walcott [1905a, p. 252] Nisusia (Jamesella) argenta. 



Nisusia (Jamesella) erecta Walcott [1905a, p. 253] Nisusia (Jamesella) erecta. 



Nisusia? (Jamesella?) kanabensis Walcott [1908d, pp. 97-98] Nisusia? (Jamesella?) kanabensij. 



Nisusia (Jamesella) kuthani Walcott [1905a, pp. 253-254] Nisusia (Jamesella) kuthani. 



Nisusia (Jamesella) lowi Walcott [1908d, p. 98] Nisusia (Jamesella) lowi. 



Nisusia (Jamesella) perpasta Walcott [1905a, pp . 254-255] Nisusia (Jamesella) perpasta . 



Nisusia (Jamesella) perpasta macra Walcott [1905a, p. 255] Nisusia (Jamesella) perpasta macra. 



Nisusia (Jamesella) perpasta subquadrata Walcott [1905a, p. 255] Nisusia (Jamesella) perpasta subquadrata. 



Nisusia (Jamesella) utahensis Walcott [1905a, pp. 255-256] Nisusia (Jamesella) utahensis. 



Nisusia (Jamesella) sp. undt. Walcott [1905a, p. 256] Nisusia (Jamesella) sp. undt. 



nitens [Linnarssonella], Walcott [1908d, p. 91] Linnarssonella nitens. 



nitida [Linnarssonia?], Walcott [1901, p. 673] Acrothele nitida. 



