Type 
Type: 
THE EURYPTERIDA OF NEW YORK 
| Genus mecatocraptus Miller 
Megalograptus welchi Muller 
Genus strasops Beecher 
otrabops thacheri Beecher 
Genus stytonurus Page 
Subgenus crEnoPprerus nov. 
*S. cestrotus Clarke 
*5. multispinosus nov. 
* °? 5S. excelsior Hall 
*S. Sp. a 
*S. sp. B 
*S. Sp. ¥ 
Subgenus prepayoprerus Laurie 
Drepanopterus longicaudatus nov. 
Indeterminate species 
S. beecheri Hall 
*5. ? limbatus nov. 
*5. myops Clarke 
*S. sp. 8 
Family preryGoTIDArm nov. 
Genus nucummirria Sarle 
*H. socialis Sarle 
*H. socialis var. robusta Sarle 
*H. magna nov. | 
*H. shawangunk Clarke 
Genus prerycotus Agassiz 
Pterygotus atlanticus nov. 
*P, buffaloensis (Pohlman) 
*P, cobbi Hall 
*P. globiceps nov. 
*P. grandis (Pohlman) 
I51 
