136 U.S. NATIONAL MUSEUM BULLETIN 262 



Valcouroceras 



elongatum Flower 



Flower, R. H., 1952: p. 53, 54, pi. 10, fig. 7. 

 Holotype 114385 



Chazy Ls. New York 



Vassaroceras 



Henrietta (Dwight) 



Ulrich, E. O., et al., 1944: p. 33, pi. 4, figs. 3-5. 

 Hypotypes 109438, 109439 



Rochdale Ls. New York 



Wale ottoc eras 



monsense (Walcott) 



Ulrich, E. O., et al., 1944: p. 88, 89, pi. 45, fig. 20. 

 Hypotype 109537 



Mons Fm. Alberta, Canada 



obliquum Ulrich, Foerste, Miller, and Unklesbay 



Ulrich, E. O., et al., 1944: p. 89, 90, pi. 45, figs. 3, 4, 7, 8, 11-14, 



17-19; pi. 46, figs. 5-11. 



Paratypes 109545, 109546, 109538, 



109540 



Gasconade Dol. Missouri 



Paratype 109544 



Upper Ozarkian Maryland 



Paratype 109543 



Upper Ozarkian Oklahoma 



Paratype 109539 



Upper Ozarkian New York 



Paratypes 109547, 109541 



Chepultepec Dol. Alabama 



Paratype 109542 



Oneota Dol. Wisconsin 



Unklesbay, A. G., 1954: p. 651, 652, pi. 71, figs. 1-4. 

 Hypotypes 123424-123426 



Tanyard Fm., Staendebach Mbr. Texas 



Hypotype 123427 



Gasconade Horiz. Texas 



sp. 



Ulrich, E. O., et al., 1944: p. 90, pi. 45, figs. 1, 2. 

 Figured and described specimens 109553, 109554 



Signal Mountain Fm. Oklahoma 



