uKAI'TOLITES OF NEW YORK, PART 1 783 



Caryocaris cf. curvilineatus Giirley 



Page 738 



17 Prevailing aspect of the bodies at the Deep kill section, referred to this 



species. x6^ 

 Graptolite bed 1 of the Deep kill section 



Grenus dawsonia Nicholson 

 Dawsonia tridens Gurley 



Page 741 



18 Specimen showing incisions suggestive of thecae and a longitudinal axis. 



x7 



19 A similar specimen with more distinct denticles. x6 



Graptolite bed 2 of the Deep kill section 



20 A specimen showing two thecoid tubes. x7 



Graptolite bed 1 of the Deep kill section 



Dawsonia monodon Gurley 



Page 741 



21 Complete specimen showing a long median and t^vo lateral appendages. 



x2 



22 A smaller specimen with less developed lateral appendages. x6^ 



23 A further enlargement of the original of figure 21 (x6^) to show more 



distinctl}' the thecal tubes of the middle appendages 



24 A specimen with strongly developed narrow, lateral appendages. x8 



Graptolite bed 1 of the Deep kill section 



25 Frontal vieAv of a middle appendage sho^ving four apertures. x7 



Graptolite bed 3 of the Deep kill section 

 2(5 A specimen with broad median and short lateral appendages. x6^ 

 Graptolite bed 1 of the Deep kill section 



