242 



Report of the State Geologist. 



Lower shales, but occurs rarely in the Encrinal limestone, and is sparingly- 

 represented in the lower Moscow shales. It has not been observed in the 

 upper portion of the Moscow shales. Below the Trilobite beds it is very- 

 rare, only a few fragments having been obtained. These show r the existence 

 of the species in the lowest Hamilton beds of this region. 



2a. Crypeleus Bootiii, var. calliteles, Green. 



1888, J. Hall and J. M. Clarke, Pal. K Y., vol. 7. p 45, pi 16, 16a. 



This variety is rare, being represented in the collections from Eighteen 

 mile creek by a few pygidia and cephala only, which were found in the Trilobite 

 beds. Two pygidia from the Encrinal limestone are referred to this variety 

 with some doubt. 



Genus Homalonotus, Koenig. 



3. Homalonotus Dekayi, Green. 



1888, J Hall and J. M. Clarke, Pal. N Y., vol. 7, p. 7, pi. 2, 3, 4, 5. 



This species is rare in the Hamilton group of this region. I have not 

 found it at Eighteen-mile creek, but at Hamburgh-on-the-lake a few fragmentary 

 specimens were obtained. It occurs in the lowest Trilobite bed, and fragments 

 have been found in the Pleurodictyum and Nautilus beds. 



Genus Proetus, Steininger. 



4. Proetus macrocephalus, Hall. 



1888, J. Hall and J. M. Clarke, Pal. N. Y., vol. 7, p. 116, pi. 21, 23. 

 This species occurs in the Encrinal limestone. It is rare, though the 

 specimens found are of good size. 



5. Proetus, sp. 



A single glabella, approaching in outline that of P. curvimarginatus, 

 of the Schoharie grit, was found in a fossiliferous layer six feet below the 

 lowest Trilobite bed at Wanakah Cliff. The surface is strongly pustulose. 



