648 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Hormotoma subulata (Conrad). 



Loxonema subulata Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 273, pi. 



16, fig. 14. Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 100. 

 Murchisonia subulata Hall, Pal. New York, 2, 1852, p. 91, pi. 28, figs. 7a, b, c, d. 

 Holopella? cf. Loxonema subulata Foerste, Proc. Boston Soc. Nat. Hist., 24, 1889, 



p. 291, pi. 5, fig. 21. 

 Loxonema? (cf. Holopella) subulata Foerste, Geol. Surv. Ohio, Pal., 7, 1893, p. 



556, pi. 30, fig. 21. 

 Early Silurian: Medina, Reynales Basin, and Wolcott, New York (Clinton); 



Todds Fork and Dayton, Ohio (Brassfield). 



Hormotoma tenera Savage. 



Hormotoma tenera Savage, Bull. Geol. Surv. Illinois, 23, 1913, p. 96, pi. 6, fig. 9. 

 Upper Medinan (Edgewood): Near Edgewood and Louisiana, Missouri. 



Hormotoma terebriformis Foerste. 



Hormotoma terebriformis Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 



137, pi. 3, figs. 8a, b. 

 Trenton (Upper): Near Rogers Gap, Kentucky. 



Hormotoma teretiformis (Billings). 



Murchisonia teretiformis Billings, Geol. Surv. Canada Rep. Progr. for 1853-1856, 



1857, p. 298; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, pp. 18, 55. 

 Murchisonia bellicincta var. teretiformis Whiteaves, Canadian Rec. Sci., 5, 1893, 



p. 320. 



Hormotoma teretiformis Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref.). 

 Richmond (Charleton): Charleton Point, Anticosti. 



Hormotoma trentonensis Ulrich and Scofield. 



Murchisonia bellicincta Hall (part), Pal. New York, 1, 1847, pi. 39, fig. le (not 



la-Id). Owen, Geol. Rep. Wisconsin, Iowa, Minnesota, 1852, pi. 2, fig. 8. 

 Murchisonia major Whitfield (not Hall), Geol. Wisconsin, 4, 1882, p. 244, pi. 9, 



fig. 4. 

 Hormotoma trentonensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 



1017, pi. 70, figs. 13, 14. Grabau and Shimer, N. A. Index Fossils, 1, 1909, 



p. 650, fig. 887b, 888. 



Trenton: New York, Canada, Minnesota, Illinois, Kentucky, Tennessee. 

 Holotype.Ca,t. No. 45867, U.S.N.M. 



Hormotoma tricarinata Grabau. 



Hormotoma tricarinata Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, p. I 1 / 



pi. 25, figs. 3-4. 

 Upper Monroan (Lucas): Gibraltar quarry, Wayne County, Michigan. 



Hormotoma vesta (Billings). 



Murchisonia Vesta Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 276, 

 280; Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 32, fig. 33 (adv. sheets, 1862). 

 Lesley, Geof. Surv. Pennsylvania, Rep. P 4, 1889, p. 431, fig. Koken, 

 Neues Jahrb. Min., Geol. Pal., 6, 1889, Beilage-Band, p. 375. 



Hormotoma vesta Ulrich, Geol. Minnesota, 3, pt. 2, 1897, p. 1014 (gen. ref.). ' 



Canadian (Beekmantown): Phillipsburg, Quebec. 



Hormotoma whiteavesi Clarke and Ruedemann. 



Hormotoma whiteavesi Clarke and Ruedemann, Mem. New York State Mus., 

 5, 1903, p. 72, pi. 8, figs. 5, 9. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, 

 pt. 4, 1906, p. 332. 



