74 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Arthrostylus tenuis Continued. 



Trenton (Upper) and Eden: Cincinnati, Ohio, and vicinity; Indiana and Ken- 

 tucky; New York (Indian Ladder). 

 Plesiotypes.V&t. No. 43637, U.S.N.M. 



ASAPHELLUS Callaway. Genotype: Asaphus homfrayi Salter. 



Asaphellus Callaway, Quart. Jour. Geol. Soc. London, 33, 1877, p. 663. Zittel, 



Handb. Pal., 2, 1885, p. 609. Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, 



p. 37; Zittel-Eastman Textb. Pal., 1913, p. 719. Grabau and Shinier, N. A. 



Index Fossils, 2, 1910, p. 290. 



Asaphellus gyracanthus Raymond. 



Asaphus canalis? Cleland, Bull. Amer. Pal., 3, 1900, p. 128, pi. 16, figs. 7, 8; 4, 



1903, p. 38. 



Isotelus canalis Weller, Pal. New Jersey, 3, 1902, p. 132, pi. 5, figs. 5, 6. 

 Asaphellus gyracanthus Raymond, Ann. Carnegie Mus., 7, No. 1, 1910, p. 39, pi. 



14, figs. 5-7. 

 Canadian (Beekmantown): Fort Hunter, New York (Tribes Hill), and Columbia, 



New Jersey. 



Asaphellus homfrayi (Salter). 



Asaphus Homfrayi Salter, App. Ramsay Geol. N. Wales; Mem. Geol. Surv., 3, 



1866, p. 311, pi. 8, figs. 11-14; Mem. Geol. Surv. Great Britain, 3, 1881, 2d ed., 



p. 506, pi. 8, figs. 11-14. 

 Asaphus (Isotelus) Homfrayi Salter, Mon. British Tril., Pal. Soc., 1866, p. 165, 



pi. 24, figs. 6-12; Cat. Camb. and Sil. Foss., 1873, p. 17. 

 Asaphus (Asaphellus) Homfrayi Callaway, Quart. Jour. Geol. Soc. London, 33, 



1877, p. 663, pi. 24, fig. 1. 

 Asaphellus Homfrayi var. Matthew, Bull. Nat. Hist. Soc. New Brunswick, 20, 



1902, p. 413, pi. 18, figs. lOa-e; Rep. Cambrian Rocks Cape Breton, Geol. 



Surv. Canada, 1903, p. 232, pi. 18, figs. lOa-e. 

 Asaphellus Homfrayi, var. macropyga Grabau and Shimer, N. A. Index Fossils, 



2, 1910, p. 290, fig. 1598. 

 Lower Ordovician: Europe; McLeod Brook, near Boisdale, Cape Breton, Nova 



Scotia (Bretonian Div. C 3c2). 



ASAPHELLUS PLANUS Matthews. See Hemigyraspis plana. 



ASAPHOCRINTJS Springer. Genotype: A. bassleri Springer. 



Asaphocrinus Springer, Mon. Crin. Flex., Smiths. Inst. (in press). 



Asaphocrinus bassleri Springer. 



Asaphocrinus bassleri Springer, Mon. Crin. Flex., Smiths. Inst. (in press). 

 Niagaran (Brownsport): Decatur County, Tennessee. 



Asaphocrinus incisus (Ringueberg). 



Lecanocrinus incisus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, No. 1, 1886, p. 



10, pi. 1, fig. 6. 



Asaphocrinus incisus Springer, Mon. Crin. Flex., Smiths. Inst. (in press). 

 Clinton (Rochester): Lockport, New York. 



Asaphocrinus ornatus (Hall). 



Cyathocrinus? Hall, Nat. Hist. New York, Geol. 4th Dist., 2, 1843, p. 201, pi. 44, 



figs. 2a-m. 



Lecanocrinus ornatus Hall, Pal. New York, 2, 1852, p. 201, pi. 44, figs. 2a-m. 

 Asaphocrinus ornatus Springer, Mon. Crin. Flex., Smiths. Inst. (in press). 

 Lecanocrinus nitidus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, No. 1, 1886, 



p. 9, pi. 1, fig. 5. 

 Lecanocrinus excavatus Ringueberg, Bull. Buffalo Soc. Nat. Hist., 5, No. 1, 



1886, p. 11, pi. 1, fig. 7. 

 Clinton (Rochester): Lockport, New York. 



