GUAPTOLITES OF NEW YORK. I'AUT 1 755 



Ptilograptus plumosus Hall 



Page 588 



14 Rhabdosome 



15 Fragment of rhabdosome. x2 



Graptolite bed 7 of the Deep kill section 



Ptilograptus geinitzianus Hall 



Paire 590 



16 Enlargement of stem. x2 



Graptolite bed 3 of the Deep kill section 



Genus strophograptus gen. nov. 

 Strophograptus trichomanes sp. nov. 



Pag:e 717 



17 Bundle of branches 



18-20 Enlargements of fragments of branches to show character of thecae. x7 

 Graptolite bed 7 of the Deep kill section 



Genus bryograptus Lapworth 



See pi. 5 



Bryograptus pusillus sp. nov. 



Page 641 



21 Rhabdosome. x7 



22 Same. x2 



Graptolite bed 2 of the Deep kill section 



