824 



GENERAL INDEX. 



Diohoorinus pisiun, 763. (PI. LXXVI, fig. 5 ; 

 LXXVII, fig. 10.) 



plicatus, 758. (PI. LXXVII, figs. 5a, b.) 



■ poclllum, 767. 



polydactylus, 103, 756. (PI. LXXVII, 



figs, la, b.) 



■ radiatus, 754. 



soitulus, 767, 772. (PI. LXXVIII, figs. 



1.3a -U.) 



sculptus (^Lyon and Cass.), 7G2. 



sexlobatus, 754, 784. 



simplex, 790. 



striatus, 757. (PI. LXXVII, figs. 1 1 a, b.) 



siibspi7iulositSy 754. 



superstes, 766. (PI. LXXVI, fig. 12.) 



symmetricus, 786. 



Ulrichi, 772. 



Dicyclic, 33. 



Dicyclio Crinoids, 54, 58, 60, 67. 

 DicycUca, 59, 157, 165. 

 Dimerocrinus, 189, 190. 



aptilis, 192. 



decndactyhis, 191. 



icosidactylus, 191. 



■ Uliiformis, 192. 



oligoptilis, 192. 



waldrojiensis, 192. 



Disooidens group, 710, 713. 



Disk, 29, 35, 105. 



Disk ambulacra, 85, 154. 



Discoveries of specimeus, 19. 



Distal, 37. 



Distiohals (Distichalia), 15, 34, 71, 78, 97, 



100, 108. 

 Distribution, geological and geographical, 171, 



188, 265, 363, 551, 643, 742, 803. 

 Dizygocrinus, 362, 387, 374, 413. 

 andrewsianus, 433. (PL XXLX, figs. 



2a-d.) 

 biturbinatus, 427, 430. (PI. XXXIII, 



fig. 9.) 

 cantonensis, 423. (PI. XXXIII, fisrs. 



8a, b.) 



crawfordsvillensis, 417. 



decoris, 420. (PI. XXXV, fig. 6.) 



dodeeadaotylus, 432. (PI. XXIX, figs. 



la-o.) 

 -euconus, 413, 430. (PL XXXV, figs. 



7a, b.) 

 var. aljscissus, 431. (PL XLVI, 



fig. 9.) 



Dizygocrinus facetus, 418. (PI. XXXIII, 



fig. 12.) 



Gorbyi, 426. 



Gurleyi, 422. (PL XXXIV, fig. 19.) 



indianensis, 413, 415, 417. (PL XXXIH, 



figs. 6a, b; XXXV, fig. 5.) 

 var. simplex, 416. (PL XXXin, 



fig. 7.) 

 montgomeryensis, 428. (PL XXXIII, 



figs. 3, 4 ; XLVI, fig. 10.~) 

 var. unibraehiatus, 429. (PL 



XXXIIL figs. 5a-c.) 

 mutablHs, 414, 429. (PL XXXV, figs. 



8, 9, 10, 11.) 

 originarius, 414, 421. (PL XXXIII, 



figs, la, b; XXXV, figs. 14, 15.) 



var. adultus, 414, 422. 



rotundus, 431, 432. (PL XXIX, figs. 



3a-4.) 

 unionensis, 424. (PI. XXXV, figs. 16- 



20.) 

 ■ var. divaUs, 425. (PL XXXV, 



figs. 21-24.) 

 Whitei, 419, 421. (PL XXXIII, figs. 



10a, b, 11.) 

 didactylus, 420. (PL XXXV, figs. 



12, 13.) 

 Dolatoorinites, 264, 304. 

 Dolatocrinus, 77, 122, 124, 265, 307, 310. 311. 



canadensis, 315. (PL XXV, figs. 7a, b.) 



excavatns, 321. (PL XXV, fig. 1 ; 



XXVI, figs. 7, 8.) 

 glyptns, 317, 318. (PL XXVI, figs. 



2a, b.) 

 icosidactylus, 319. (PL XXVI, figs. 



5a-d.) 



laeus, 311. (PL XXVI, figs. 6a-c.) 



liratus, 319. (PL XXVI, fig. 3.) 



var. mvltilira, 319. 



Lyoni, 314. (PL XXV, figs. 6a-d.) 



major, 322. (PL XXV, fig. 5.) 



Marshi, 312. (PL XXVI, fig. la-d.') 



var. hamiltonensis, 314. (PL XXV, 



figs. 2a, b.) 



• ornatus, 317. 



speciosus, 323. (PL XXV, figs. 4a, b.) 



triadactylus, 316. (PL XXVI, figs. 



4a-d.) 



tubercnlatus, 324. (PL XXV, fig. 3.) 



Dorsal cup, 33, 150. 

 Dorsooentral, 33, 49, 51. 



