300 CALIFORNIA ACADEMY OF SCIENCES. 



DALMANITES. 



(Phveton) denticulatus Meek, 1877; U. S. Geol. Expl. 40th Par., vol. 



4, p. 49, pi. 1, figs. 10 a, b. 

 AKCiphus diurus Green is referred to Coronura diurus bj' Clarke. (See 



note ( u Coronura aspectans, j). 5.) 

 Syu., Asaphus aspectans Courad; also, Dalmanitcs ohioetisis Meek, and 

 D. helena Hall, all from the Corniferons limestone. 

 — - EMARGiNATrs Hall, 1876; lUus. Devonian Foss. Crust., pi. 10, fig. 2. 



Upper Helderberg. 



(Coronura?) emarginatus Hall, 1888; Pal. New York, vol.7, p. 40, pi. 



11a, figs. 7, 8. Schoharie, N. Y. 



epicrates Bill., 1863; Proc. Portland Soc. Nat. Hist., vol. 1, p. 119, 



pi. 1, fig. 21. Stair Falls, Maine. Silurian. 



Dalmania erina Hall, 1861; Des.New Species Foss., p. 62. Williams- 



ville, N. Y. Upper Helderberg. 



Dalmania erina Hall, 1862; 15th Kep. New York State Cab. Nat. 



Hist., p. 90. 



ERINA Hall, 1876; Illus. Devonian Foss. Crust., pi. 13, figs. 3-4. 



{Chaxmops) erina Hall, 1888; Pal. New York, vol. 7, p. 67, pi. 11, 



figs. 16-18. 

 Dalmania helena. (See Dalmanites aspectans.) 



INTERMEDINS Wal., 1877; advance sheets 31st Eep. New York State 



Cab. Nat. Hist., p. 17. Two miles north of Duulith, 111., etc. 



Trenton. 

 — — XNTERMEDius Wal., 1879; 3l8t Rep. New York State Cab. Nat. Hist., 



p. 69. 

 Phacops? LATicAUDA Hall, 1847; Pal. New York, vol. 1, p. 248, pi. 64, 



fig. 3. 

 Asaphus LiMui.cRus Green, 1832; Monthly Am. Jour. Geol., vol. 1, 



p. 559. Niagara. 



Asaphus LIMULURUS Green, 1832; Mon. Tril. N. A., p. 48, cast 16. 

 Phacops i.iMULURCs Hall, 1852; Pal. New York, vol. 2, p. 303, pi. 67, 



figs. 1-8. Lockjiort, N. Y. 

 Syn., Dalmania caudaia (Brong.) Roemer, 1860; Die Sil. Fauna W. 



Tenn., p. 82, pi. 5, fig. 21. 

 Dalmania logani Hall, 1860; Canadian Naturalist, vol. 5, p. 156, fig. 



18. Nova Scotia. Silurian. 



Dalmania macrops Hall, 1861; Des. New Species Foss., p. 59. 



Schoharie, N. Y. Upper Helderberg. 



Dalmania macrops Hall, 1862; I5th Rep. New York State Cab. Nat. 



Hist., p. 87. 



MACROPS, 1876; Illus. Devonian Foss. Crust., pi. 13, figs. 9, 10. 



(Chasmops) macrops Hall, 1888; Pal. New York, vol. 7, p. 68, pi. 11 a, 



figs. 14-15. Schoharie, N. Y. 



