INDEX TO GRAPTOLITES OF NEW YORK, PART 1 



791 



Didymograptus caduceus nanus mat. 

 nov., 506-7, 668, 698, 700. 

 explanation of plate, 776. 

 figure, 698. 

 (gibberulus) 497, 550, 551, 555, 562, 

 570, 653, 654, 677, 693, 694, 696, 697, 

 698, 699. 

 constrictus, 585, 668, 670, 671. 

 cuspidatus sp. nov., 499, 500, 506-7, 560, 

 573, 667, 684^85. 

 explanation of plate, 773. 

 figures, 684, 685. 

 decens, 678, 679, 744. 

 (indentus) dentatus, 655. 

 ellesi sp. nov., 506, 557, 558, 573, 667, 

 682-83. 

 explanation of plate, 775. 

 figures, 682. 

 extensus, 504-5, 516, 548. 556, 557, 562, 

 569, 573, 608, 648, 667, 668-71, 672, 

 - 673, 678. 

 explanation of plates, 773, 774. 

 figures, 669, 670. 

 filiformis, 499, 500, 506-7, 561, 562, 565, 

 573, 667, 686-87. 

 explanation of plate, 774. 

 forcipiformis sp. nov., 499, 506-7, 562, 

 573, 668, 699-700. 

 explanation of plate, 776. 

 figure, 699. 

 fractus, 652. 

 ? fmticosus, 649. 

 furcillatus, 555, 559, 608. 

 geminus, following p.503. 

 (Isograptus) gibberulus. 669, 694. 



var. nanus var. nov., 694. 

 gracilis, 499, 500, 506-7, 533, 555, 558, 

 561. 562, 565, 573, 667, 679-81, 682, 

 744. 



Didymograptus gracilis, explanation of 

 plate, 775. 

 figure, 583. 

 incertus sp. nov., 506-7, 552, 573, 668, 

 700-1. 

 explanation of plate, 777. 

 figure, 700. 

 indentus, 555, 559, 667, 693. 



var. nanus, 692. 

 murchisoni, 637, 667, 690, 744. 

 nanus, 497, 506-7, 573, 667, 680, 682, 

 692-93. 

 explanation of plate, 776. 

 nicholsoni, 555, 557, 558, 562, 675. 

 var. planus, 506-7, 573, 667, 685-86, 

 688. 

 explanation of plate, 773. 

 figures, 685, 686. 

 nitidus, 504-5, 530, 557, 562, 569, 573, 

 663, 667, 671-74, 675, 676, 677, 

 679. 

 explanation of plates, 772, 774. 

 figures, 672, 673. 

 var. grandis, 674. 

 explanation of plate, 772. 

 patulus, 504-5, 516, 530, 535, 556, 557, 

 569, 573, 667, 671, 673-74, 674-77. 

 explanation of plates, 772, 774. 

 figures, 675, 676, 677. 

 pennatulus, 608. 

 Sagittarius, 678. 



similis, 497, 506-7, 557, 573, 652, 667, 

 677-79, 688. 

 explanation of plate, 775. 

 figures, 678. 

 spinosus sp. nov., 400. 500, 506-7, 558, 

 573. 667, 688-89. 

 explanation of plate, 775. ^ 

 figures, 689. 



