850 



CAMBRIAN BRACHIOPODA. 



Nimsia (Jamesella) bsmScs— Continued. 



general geographic and stratigraphic distribution tab- 

 ulated W 



tjTie specimen figured PI. XCIII, fig. 6 



pelUco, described 735 



general geographic and stratigraphic distribution tabu- 

 lated 107 



type specimen figured PI. XCVII, fig. 2 



, described 735 



I with Nisusia alberta 726 



Nisusia festinata 729 



Nisusia {Jamcsella) perpasta macra 736 



' Nisusia (Jamesella) perpasta subquadrata 736, 737 



general geographic and stratigraphic distribution tabu- 

 lated 107 



type specimen not figured. 



perpasta macra, described 736 



general geographic and stratigraphic distribution tabu- 

 lated 107 



type specimen figured PI. CI, fig. 3a 



perpasta subguadrata, described 736 



general geographic and stratigraphic distribution tabu- 

 lated 107 



type specimen figured PI. CI, fig. 2a 



spencei, described 737 



general geographic and stratigraphic distribution tabu- 

 lated 107 



type specimen figured PI. XCIII, fig. 7a 



utahensis, described 737 



general geographic and stratigraphic distribution tabu- 

 lated 107 



type specimen figured PI. CI, figs. 10 and 10a 



sp. undt., described 738 



general geographic and stratigraphic distribution tabu- 

 lated 107 



type specimen not figured. 



Nisusiin^, classification of 321, 325 



genera and species referred to, described 725-745 



surface ornamentation discussed 303 



nitens, see Linnarssonella. 

 nitida, see Acrothele. 



Nosrsnass, Norway, locality at 9f 



NoetUng, F ., bibliographic references 22 



Nolichucky shale (Middle Cambrian), in generahzed section for 

 Termessee, Georgia, and Alabama, listing species and lo- 



caUties 147 



localities in 2z, 124, 124a, 374c 



Kommeweske, Esthonia, Russia, localities at 396i,396p 



Nordmannaskar Island, Sweden, locality on 390b 



Norfolk County, Massachusetts, locaUties in 5, 9n, 326b, 326e, 326f 



Norrskedika, Sweden , locality at 311a 



Norrteije, Sweden, locality near 311u 



North America, zoologic list of Cambrian species of, giving geo- 

 graphic distribution by States and geologic provinces . . 114-119 



zoologic list of Ordovlcian species of 122-123 



North Attleboro, Massachusetts, locality near 326d 



North Chatham, New York, locality near 44b 



North Granville, New York, localities near 22, 38a 



North Granville bridge. New York, localities near 20, 21a 



North Greenmch, New York, locaUties near. 33, 33b, 43, 338c, 338e, 338o 



North Hebron, New York, locality near 34a 



North Weymouth, Massachusetts, localities near 9ii, 326e, 326f 



Norway, Cambrian species of, listed 120-121 



generalized section of Cambrian and Ordovlcian in, listing 



included and correlated species and localities 144-146 



locaUties in 8v, 8x, 9f, 323, 323a-i, 323 1-z, 324, 324a-d 



See also separate provinces. 



Notch Peak, House Range, Utah, localities on and near 30m, 



30w, 30y, 31q, 105t 

 Notch Peak limestone (Upper Cambrian), in detailed section in 

 House Range, Utah, listing Included and correlated spe- 

 cies and localities 153 



locaUties in 30m, 30w, 31q 



Tiotchensis, see Obolus ( Wcstonia). 



Nounan limestone (Middle Cambrian), in detailed section in 

 Blacksmith Fork, Utah, listing included and correlated 



species and locaUties 149 



locaUty in 56f 



Nova Scotia, localities in 3h, 31, 3n-q, 8d, lOc-t, llz, 13d-i, 13k-r, 



13t, 13t", 160, 307, 307a-j, 325, 325a-c, 344, 344a-o, 372, 372a-f 

 See also Cape Breton. 



Novgorod, Russia, localities In 336j, 336s 



nox, see Acroireta. 



nundina, see Obolus and Syntrophia. 



Nuneaton, England, locaUty at 304o 



Nunkoweap Valley, Arizona, localities in 74, 74b 



Nuns HiU, near St. David's, South Wales, locaUty at 366c 



Nye County, Nevada, locaUties In 7j, 313g 



nympka, see Eoorthis desmopleura. 

 nyssa, see Micromiira (Iphidella). 



Obolacea, classification of 321, 322 



distribution in Cambrian strata 316 



genera and species referred to described 369-678 



Obolella, described 586 



articulating processes discussed 307 



cardinal area discussed , 304, 305 



classification of 321, 324 



compared with Acrotrcta argeiUa 673, 674 



Acrotreta emmoTisi 684 



Bicia 569 



602 



Dicellomus 572,577,592 



Elkania 562 



Mkania desiderata 562 



Kutorgina 582 



LinguUlla 471, 472, 473 



Lingulella prima 527 



Linnarssonella 314 



Obolella (^Glyptias) favosa 600 



Obolus 312,376,592 



Pentamerus 597 



Qucbecia 611 



Trematobolus 615, 616 



Trematobolus lempanum 620 



Yorkia? washingtonensis 613 



development mentioned 562 



evolution discussed : 319 



evolution of 317 



general geographic and stratigraphic distribution of 



the species referred to 104 



general stratigraphic distribution and number of 



Cambrian species and varieties of 110 



Hall and Clarke on development of 309 



mentioned 373, 386, 388, 389, 392, 403, 423, 471, 472, 650 



muscle scars discussed 312 



number of species of, in the diflerent types of sedi- 

 ment 160 



pediqle tube discussed 314 



reference of Obolella asiatica to, discussed 589 



shell structure 297 



stratigraphic position mentioned 318 



surface ornamentation discussed S02 



vascular markings discussed 311 



asiatica, described 588 



general geographic and stratigraphic distribution tabu- 

 lated 104 



type specimen figured Pi. LV, fig. 6 



atlantica, described 589 



compared with Acrothele bcllula 637 



Liiu/ulella acutangula 590 



Linnarssonella 314 



Linnarssonella tennesseensis 669 



Obolella chromatica 591,592 



Obolella crassa 593 



Obolella minor 597 



Obolella mobergi 598 



Obolus f zoppi 422 



discussed 587 



general geographic and stratigraphic distribution 



tabulated 104 



type specimen figured PI. LV, fig. Ih 



chromatica, described 591 



compared with Dicellomus politus 672 



Kutorgina 579 



Obolella atlantica 590 



Obolella crassa 593 



Obolella mobergi 598 



Qucbecia circe...... 610 



general geographic and stratigraphic distribution 



tabulated IM 



type specimen not figured. 



