GENERAL INDEX. 



833 



Platyerinus Pratteni, 668, 671. (PI. LXX, 

 figs. 11, 12.) 



pulchellus, 651, 713. 



pumilus, 650. 



pitnctobrackiatus, 750. 



quinquenodus, 661. (PI. LXXI, figs. 



14a-c.) 



ramulosus, 651, 735, 737. 



regalis, 710, 712. (PI. LXXII, figs. 1, 2.) 



reiiarhis^ 735. 



richjieldensis, 651, 672. 



rotundus, 651, 691. 



SafFordi, 694. (PI. LXVII, figs. 1-3.) 



Sampsoni, 673. (PI. LXX, fig. 10.) 



SaviB, 84, 677, 682. (PI. LXIX, fig. 7 ; 



LXX, fig. 1.) 



seotina, 695, 697. (PI. LXVIII, figs. 



14a, b.) 



sculptus, 691, 693, 695. (PI. LXVIII, 



fig. 5 ; LXXV, figs. 8, 9.) 



shumardiamis^ 651, 713. 



. spinifer, 708. (PI. LX^T, fig. 7.) 



var. elongatus, 709. (PI. LXVII, 



fig. 7.) 



striobrachiatus, 651, 713. 



subspinosus, 717. (PI. LXVI, figs. 9a, b.) 



subspinulosus, 684, 685, 754. (PI. LXVI, 



figs. 2a, b ; LXX, fig. 9.) 



svlcatus^ 651, 718. 



symmetricus, 103, 118, 655. (PI. IH, 



fig. 16; LXIX, figs, la-c.) 



ienjiesseensis^ 651, 731. 



ientaculatics, 651, 733. 



tenuibracliiatTis, 687, 699. (PI. LXX, 



figs. 7, 8.) 



truncatulns, 647, 673. (PI. LXVII, figs. 



11a, b; LXXL figs. 18a, b.) 



truncatus, 651, 686. 



tuherosus, 651, 720, 728. 



verrucosus, 705, 706, 709. (PI. LXVI, 



figs. 3a, b; LXVIII, figs, la-d.) 



vexabilis, 650. 



Wortheiii, 702. (PI. LXVII, fig. 9.) 



YandelU, 103, 706, 708. (PI. LXVI, 



figs. 6a-c ; LXVIII, figs. 3a-o.) 



var. perasper, 708. (PI. LXVIH, 



figs. 4a, b.) 



undesoribed species from England, 644. 



Pkurocrimis, 647, 649. 

 Plicatocrmidse, 30. 

 Polycrinides, 18. 



Polt/merUy 31. 



Polypeltes, 365. 



Pores iu Poteriocrinidse, 114, 116. (PI. VII, 



figs. 4, 7, 8, 9.) 

 Porocrinus, 67, 146. 

 Position for figuring, 37. 

 Postpalmars, 34, 73, 76. 

 Poteriocrinidae, 58, 87, 116, 155, 161. 

 Poteriocrinus, 13, 87, 127, 159. 



— missouriensis, 78. 

 Pradocrinus, 519, 521. 



amphis, 530. 



Primary brachials, 34. 

 Primary plates, 38. 

 Proximal, 37. 



Proximal plates (proximals), 90, 95. 

 Proximal ring of base, 54. 

 Pseudomonocyclica, 59. 

 Pterotocrinus, 77, 79, 83, 112, 741, 781, 791. 

 (PI. LXXIX, fig. 10.) 



acutus, 799. (PI. LXXIX, figs. 3a-g.) 



var. bifuroatus, 801. (PI. LXXIX, 



figs. 9a, b.) 



capitaUs, 793, 794, 799. (PI. LXXIX, 



figs. 6a, b.) 



chesterensis, 802. (PI. LXXIX, figs. 



5a, b.) 

 — cornigerus, 783. 



coronarius, 795. (PI. LXXIX, figs. 



7a, b.) 



crassus, 801. (PI. LXXIX, fig. 8.) 



depressus, 796. (PI. LXXIX, figs. 2a-o.) 



pyramidalis, 798. (PI. LXXIX, figs. 4a, 



b.) 



rugosus, 799, 801. 



• sexlohatus, 784. 



spatulahis, 799. 



Ptychocrinus, 188, 197. 



angularis^ 199. 



parvus, 177, 199. (PI. XVin, figs, la, 



b, 2.) 



• prisons, 198. 



splendens, 198. (PI. XVIII, figs. 3a, b.) 



Pycnocrinidies, 17. 



Pycnocrimis, 175, 268, 273. 



Shafferi, 272. 



Pyxidocrinus, 519, 521. 



Quinquelocular or Dorsal organ, 45. 



Eadials (Radialia), 15, 33, 68. 



compound, 71, 158. 



limits of, 67. 



