GENERAL INDEX. 



831 



Palfeozoic Crinoids, 166. 



Palmars (Palmaria), 15, 34, 71, 73. 



Parabamlia, 53. 



Parisoerinus, 45, 77, 132, 159, 161. 



Parasitic growths. (PI. IV, figs. 18-20.) 



PateUioerinus, 79, 124, 265, 307. 



chiastodactylus, 265. 



duplicatus, 265. 



fulminatus, 265. 



pinnulatus, 265, 



Pelmatozoa, 27, 144. 



Pelvis, 13. 



Pentacrinacea, 30. 



Pentacrinid.'e, 41, 59, 65, 117, 152. 



Pentacrinus, 13, 38, 45, 49, 60, 65, 69, 81 

 141, 152. 



asterias, 65. (PI. VI, fig. 8.) 



caput-medusse, 11, 14, 28. 



europsBus, 14. 



naresianus, 51. 



Wyville-Thomsoni, 49. 



Pentagonal base, 165. 



Pentamera, 31. 



Pentamerous symmetry, 147, 165. 



Pentaphyllum, 145. 



Pentremites, 14. 



Perieohocriuites, 46, 86, 362, 366, 519. 



Periechocrinus, 46, 362, 365, 519, 520, 554. 



ampins, 530. 



Ohrisfyi, 522. 



Howardi, 529. 



infeUx, 525. (PI. L, figs. 2a-d.) 



marcouaniis, 523. (PI. L, figs. 7a, b ; 



LI, fig. 5.) 



■ moniliformis, 520. 



necis, 524. (PI. L, figs, la, b.) 



ornattis, 527. (PI. L, figs. 3a, b; LI, 



fig. 7.) 



pyriformis, 526. 



speciosus, 521, 528. 



tennesseensis, 528. 



tentiidiscus, 531 



(PI. L, figs. 6a, b.) 

 (PI. L, fig. 4.) 

 (PI. XL VI, fig. 4; 

 LI, fig. 6.) 



umiformis, 526. 



Whitei, 530, 626 



LI, figs. 9, 10.) 



Whitfieldi, 522, 526. (PI. LI, figs. 1-4.) 



Periglyptocrinus, 80, 198, 264, 277. 



Billingsi, 277. (PI. XXI, figs, la, b.) 



prisons, 278. (PI. XXI, fig. 2.) 



Perisomio plates, 36, 118. 



(PI. L, figs. 5a, b.) 

 (PI. XLVI, figs. 1-3 ; 



Phialocrinus, 80. 



Phillipsocrinvs, 294. 



Pbylogenetic history represented iu individual 



growth, 104, 166. 

 Physetocrinus, 85, 109, 122, 548, 550, 554, 



593, 637. 



inner floor of, 120. 



asper, 596. (PL LXIII, figs. 7a, b.) 



Copei, 598. (PI. LXIII, fig. 5.) 



dilatatus, 595. (PI. LXIV, figs. 9, 10.) 



lobatus, 599. (PI. LXIII, figs. 8a, b.) 



ornatus, 597. (PI. IV, fig. 3 ; LXIII, 



figs. 1-4.) 



siibvenfricosus, 593. 



ventricosns, 593. (PI. IV, fig. 2 ; LXIII, 



fig. 6; LXIV, figs. l-8b.) 

 Pinnastetta, 16. 

 Piuuata, 152, 155, 169. 

 Pinnules, 34, 73, 80, 85, 155, 160. 

 Pisocrinus, 57, 70, 72, 136, 157, 172, 205. 



(PI. XII, fig. 10.) 



— pilula, 90. 

 Planus group, 668. 



Platyoeras attached to Crinoids, 240, 566, 793, 



800. 

 Platycrinidae, 17, 83, 106, 124, 163, 166, 



170, 642, 743, 803. 



distribution of, 643. 



Platycrinifes, 647. 



Platycrinus, 13, 41, 46, 48, 57, 77, 79, 83, 91, 



94, 96, 102, 111, 113, 135, 149, 156, 163, 



642, 644, 647, 719, 730, 738, 744, 750, 753. 



(PI. IV, fig. 6.) 

 absentiviis, 650. 



— acclivus, 663. 



aequalis, 674. (PI. LXXI, figs. 4a-5.) 



— eequiternus, 658, 659. (PI. LXXI, fio-. 

 12.) 



— CBtemalis, 650, 683. 



■ Agassizi, 656, 669. (PI. LXIX, fig. 4.) 



alahamensis, 650, 678, 680. 



allophylus, 685. (PI. LXXI, fig. 17.) 



amabilis, 650. 



amerieanus, 686. (PI. LXXV, figs. 10- 



l-3c.) 



■ annosus, 650. 



altidorsatus, 650. 



asper (Gold/.), 690. 



asper (M. and W.), 690. (PI. LXVIII, 



figs. 9a, b.) 

 batiola, 650, 674. 



