INDEX TO GRAPTOLITES OF NEW YORK, PART 1 



799 



Polish graptolite horizons, 511, 

 Poljpariet, 483. 

 Polypary, 483, 484. 

 Poljpidom, 483. 

 Polypier, 483. 



Portlock, J. E., cited, 459, 467, 574. 

 Potsdam sandstone, 493. 

 Primary disk, 487. 

 Pritchard, G. B., cited, 743. 

 Pterograptus, 537, 566. 

 Ptilograptus, 497, 500, 503, 508, 537, 571, 

 572, 587-88; phylogenetic relations of 

 genera, 553. 

 geinitzianus, 504-5, 572, 590. 



explanation of plate, 755. 

 plumosus, 499, 504-5, 572, 588-89, 590, 

 591. 

 explanation of plate, 755. 

 tenuissimus sj). nov., 504-5, 572, 591. 

 explanation of plate, 754. 



Quebec group, graptolite fauna, 466, 468, 

 469, 471, 490, 579, 659, 672, 690, 697, 713, 

 721, 728, 731, following p.503. See also 

 Point Levis. 



Quenstedt, F. A., cited, 459, 467. 



Radicle, 484 ; term, 509. 



Ramsey island, Wales, graptolite fauna, 



503, 580, 583, 587, 720, 729. 

 Rensselaer county, graptolite fauna, 492, 



601, 606, 615, 618, 646, 657, 749, 751, 752, 



753 ; Clonograptus beds, 496. 

 Reticulograptus, 599. 

 Retiograptus, 468, 486, 499, 508, 509, 518, 

 539, 545, 546, 570, 572, 574, 732-33. 



eucharis, 545. 



tentaculatus, 499, 506-7, 574, 733-34. 

 explanation of plate, 781. 



Retiolites, 476, 480, 509, 518, 540, 545, 547, 

 550, 551, 732, 733. 



ensiformis, 727, 729. 



geinitzianus, 732. 



venosus, 733. 

 Retiolitidae, 545, 547. 

 Retiolitidi, 546. 



Retioloidea, 488, 544, 545, 546, 570. 

 Reverse aspect, 484. 

 Rhabdinopora flabelliformis, 600. 

 Rhabdophora, 474, 544, 570. 

 Rhabdopleura, 474, 575. 

 Rhabdosomes, 483, 484 ; walls of, 486. 

 Rhizopoda, 575. 

 Richter, R., cited, 461, ,462, 471, 473, 477, 



509, 539. 

 Roemer, F., cited, 459, 465, 620. 

 Rouvilligraptus, 537, 618. 



ricliardsoni, 498. 

 Ruedemann, Rudolf, cited, 464, 465, 466, 



471, 472, 478, 480, 487, 490, 492, 542, 601. 

 Russia, graptolite fauna, 602, following 



p.503. 



St Anne beds, 715. 



St Anne zone, 497, 498, 690, following 



p.503. 

 St Davids, Wales, graptolite fauna, 505, 



507, 585, 610, 646, 669, 673, 675, 683, 693, 



695, 739. 

 St Germain-sur-Ile, graptolite fauna, fol- 



loicing p.503. 

 St John (N. B.), graptolite fauna, 472, 



492, 495, 505, 507, 594, 596, 597, 605, 646, 



672, following p.503. 

 St Lawrence region, graptolite fauna, 



740. 

 Salter, J. W., cited, 460, 470, 634, 636, 657, 



660, 735, 736. 



