Serpulites magnus nov. 



Page 88 



i Fragment of specimen. Natural size. 



2 Surface, x 5, drawn too regular. ' 



Ordovician: Canajoharie shale, Menands, Albany county, 

 N. Y. 



Serpulites tener nov. 

 Page 88 



3 Enlargement of portion of tube, x 5. 



4 Type specimen. Natural size. 



Devonian : Hamilton beds, Clarksville, N. Y. 



Serpulites gracilis nov. 

 Page 87 



5 Group of specimens attached to shell fragments. Natural size. 



6 Group of several specimens drawn in natural size. Specimens 



retaining the chitinoid setae within the apertures of the tubes,- 

 enlarged (x 5) in figs. 6a and 6b. 



7 Another specimen (figured natural size; portion enlarged) (fig. 



7a, x 5), aperture with setae (fig. 7b, x 5). Holotype. 



8 Longest specimen observed, with adhesion disk. The original of 



figure 5 is from the Upper Canajoharie (Dolgeville) shales at 

 Dolgeville; those of figures 6-8 are from the Utica shale at 

 Holland Patent. 

 All originals of this. plate are in the New York State Museum. 



204 



