INDEX. 



85a 



' genial geographic and stratigrapliic distribution tab- 



lalated '. 100 



type specimen figured PI. XXIII, fig. 5 



? inflatus, described 393 



general geographic and stratigraphic distribution tab- 

 ulated 100 



type specimen not figured. 



"iTigricus," mentioned 383 



ismene, described 393 



general geographic and stratigrapliic distribution tab- 

 ulated 100 



type specimen figured PI. XI, fig. 3 



"Idbradoricus, ' ' mentioned 336 



notes on generic reference of 334 



not the type of Beecher's genus ^'Paterina " 344 



larriborni, described 393 



compared with Lingulella hayesi 505 



Obolus lamborni minimus 395 



Oholus smithi 417 



OboliLS willisi 420 



Obolus zetus 421 



Obolus ( Westonia) Togersi 4G4 



general geographic and stratigraphic distribution tabu- 

 lated 100 



type specimen figured PI. XXII, fig, 2j 



lamborni minimum, described - - - 395 



general geographic and stratigraphic distribution tabu- 

 lated 100 



type specimen figured PI. XXV, fig. 4 



" len3 primus " discussed 428 



loperi, described 395 



compared \Wth Obolus ( Westonia) themis 466 



general geographic and stratigraphic distribution tabu- 

 lated 100 



type specimen figured PI. IX, fig. 4a 



mccofmelli, described 396 



compared with Lingulella lielena 506 



Obolus mcconnelU decipiens 398 



Obolus mcconnelU pelias 398 



general geographic and stratigraphic distribution tabu- 

 lated 100 



stratigraphic and geographic distribution discussed... 397 



type specimen figured PI. XXIII, fig. 3 



varieties discussed 397 



mcconnelU decipiens, described 398 



compared with Obolus Tncconnelli 397 



Obolus mcconnelU pelias 398 



general geographic and stratigraphic distribution tabu- 

 lated 100 



type specimen figured PI. XXIII, fig. 4 



mcconnelU pelias, described 398 



compared with Obolus mcconnelU 397 



Obolus mcconnelU decipiens 398 



general geographic and stratigraphic distribution tabu- 

 lated 100 



type specimen figured PI. XXIII, fig. 3b 



msera, described 399 



compared with Obolus aficeps 381 



Obolus matinalis 401 



Obolus michwitd 404 



Obolus sp. undt. d 423 



general geographic and stratigraphic distribution tabu- 

 lated 100 



type specimen figured PI. X, fig. 2a 



maUnalis, described 400 



compared with Lingulella hayesi 505 



Lingulella phaon 525 



Lingulella prima 527 



Obolella (Glyptias) favosa ' 600 



Obolus ajiceps 381 



Obolus dolatus 390 



Obolus feistmanteli 391, 392 



Obolus loperi 395, 396 



Obolus msera 399 



O'bolus mickwitzi 404 



Obolus Tiamouna 406 



Obolus pandemia 407 



Obolus rhea 410, 411 



Oboluh '/)icima;/s— Continued. 



compared with Obolus sTiansiensis * ^ 415' 



Obolus tetonen^is 417 



Obolus tetonensis ninus 418 



Obolus sp. undt. e 423 



Obolus sp. undt. f 423 



Obolus {Lingulobolus) affinis 431 



general geographic and stratigraphic distribution tabu- 

 lated 100' 



type specimen not figured. 



matinalis?, described - 40:^ 



general geographic and stratigraphic distribution tabu- 

 lated '. 100 



no type specimen chosen. 



membranaceus, described 402 



general geographic and stratigraphic distribution tabu- 

 lated 100 



type specimen figured text fig. 36A, 403 



f meneghinii, described 403 



general geographic and stratigraphic distribution tabu- 

 lated ., 100 



type specimen figured PI. XXX, fig. 17 



mickwitzi, described 403 



compared with Obolus refulgens !i 410 



general geographic and stratigraphic distribution tabu- 

 lated 100 



old-age characters discussed 315 



thickening of shell beneath visceral area discussed 309 



type specimen figured PI, X, fig. 1 



minimus, described 404 



general geographic and stratigraphic distribution tabu- 

 lated 100 



type specimen figured PI. XI, fig. 8 



? minor, described 405 



general geographic and stratigraphic distribution 



tabulated 100 



type specimen figured PI. XV, fig. 6 



? mirandus, described 405 



general geographic and stratigraphic distribution 



tabulated 100 



type specimen figured PL XII, fig. 4 



? murrayi, described 405 



compared with Lingulella lens 513 



general geographic and stratigraphic distribution 



tabulated 100 



type specimen figured PL XV, fig. ^2 



namouna, described 406 



general geographic and stratigraphic distribution 



tabulated 100 



type specimen figured PL VIII, fig. 2 



nundina, described 4G& 



compared with Obolus obscurus 40T 



general geographic and stratigraphic distribution 



tabulated ioo> 



type specimen figured PL XI, fig. 4= 



obscurus, described 406> 



general geographic and stratigraphic distribution 



tabulated loO' 



type specimen figured '. PL XI, fig. 9' 



? palliatus, described 407' 



compared with Obolus f minor 405. 



general geographic and stratigraphic distribution 



tabulated _,_ loQ) 



type specimen figured PL XV, fig. 5 



pandemia, described 497 



general geographic and stratigraphic distribution 



tabulated iqq 



type specimen figured PI. IX, fig. 3a 



panderi, described 40s 



compared with Obolus triangularis 419 



general geographic and stratigraphic distribution 



tabulated 100 



type specimen not figured. 



parvus, described 408 



general geographic and stratigraphic distribution 



tabulated 100 



type spechnen figured text fig. 37A, 408 



pheres, described 408 



compared with Obolus parvus 408. 



