SCA.] 



ECHINODERMA TA. 



279 



marcouanus, Winchell & Marcy, 1865, 

 (Megistocrinusmarcouanus,) Mem. Bost. 

 Soc. Nat. Hist., p. 87, Niagara Gr. 



necis, Winchell & Marcy, 1865, (Megisto- 

 crinus necis,) Mem. Bost. Soc. Nat. 

 Hist., p. 110, Niagara Gr. 



ornatus, Hall & Whitfield, 1875, Ohio Pal., 

 vol. 2, p. 126, Niagara Gr. 



pyriformis, S. A. Miller, 1882, Jour. Cin. 

 Soc. Nat. Hist., vol. 5, p. 81, Ni- 

 agara Gr. 



semiradiatus, Hall, 1867, 20th Rep. N. Y. 

 St. Mus. Nat. Hist., p. 370, Niagara Gr. 



speciosus, Hall, 1852, Pal. N. Y., vol. 2, p. 

 205, Niagara Gr. 



tennesseensis, Troost, Ms., Hall & Whit- 

 field, 1875, Ohio Pal., vol. 2, p. 125, Ni- 

 agara Gr. 



urniformis, S. A. Miller, 1881, Jour. Cin. 

 Soc. Nat. Hist., vol. 4, p. 170, Ni- 

 agara Gr. 



whitfieldi, Hall, 1867, synonym for Sacco- 



crinus christyi. 

 SCAPHIOCRINUS, Hall, 1858, Geo. Sur. Iowa, 



S. 550. [Ety. scaphion, skiff; krinon, 

 ly.] Calyx obconoidal ; basals5; sub- 



radials 5; radials 2x5; regular interra- 



dials ; azygous interradials 1 to 6 ; 



arms 10, simple or bifurcating, plates 



projecting laterally ; sutures gaping. 



Type S. simplex. Wachsmuth & 



Springer refer the type to Graphiocrinus 



and substitute, as the type S. dicho- 



tomus. 

 abnormis, Worthen, 1875, Geo. Sur. 111., 



vol. 6, p. 519, St. Louis Gr. 

 *gina, Hall, 1863, 17th Rep. N. Y. Mus. 



Nat. Hist., p. 57, Waverly Gr. 

 jequalis, Hall, 1861, Desc. New Crin. p. 8, 



and Geo. Sur. 111., vol. 5, p. 494, Keo- 



kuk Gr. 

 bayensis, Meek & Worthen, 1865, Proc. 



Acad. Nat. Sci. Phil., p. 157, and 



Geo. Sur. 111., vol. 5, p. 550, Kaskas- 



kia Gr. 

 briareus, Worthen, 1882, (Poteriocrinus 



briareus,) Bull. No. 1, 111. St. Mus. Nat. 



Hist., p. 12, and Geo. Sur. 111., vol. 7, p. 



279, Keokuk Gr. 

 burketi, Worthen, 1882, (Poteriocrinus 



burketi,) Bull. No. 1, 111. St. Mus. Nat. 



Hist., p. 5, and Geo. Sur. 111., vol. 7, p. 



270, Keokuk Gr. 

 carbvnarius, see Graphiocrinus carbon- 



arius. 

 carinatus, Hall, 1861, Desc. New Crin., p. 



8, and Jour. Bost. Soc. Nat. Hist., vol. 



7, p. 310, Burlington Gr. 

 clio, Meek & Worthen, 1869, Proc. Acad. 



Nat. Sci. Phil., p. 144, and Geo. Sur. 111., 



vol. 5, p. 408, Burlington Gr. 

 coreyi, Meek & Worthen, 1869, Proc. 



Acad. Nat. Sci. Phil, p. 148, and 



Geo. Sur. 111., vol. 5, p. 494, Keo- 

 kuk Gr. 

 coxanus, Worthen, 1882, (Poteriocrinus 



coxanus,) Bull. No. 1, 111. St. Mus. Nat. 



Hist., p. 43, and Geo. Sur. 111., vol. 7, p. 



269, Keokuk Gr. 



\j A 

 /\ J\l A 



/JO r^ 



/-\r~vCAl ) 



cultidactylus, Hall, 1860, (Poteriocrinus 



cultidactylus,) Supp. to Geo. Sur. Iowa, 



p. 62, and Geo. Sur. 111., vol. 7, p. 301, 



Burlington Gr. 



dactyliformis, Hall, 1858, Geo. Sur. Iowa, 



p. 670, St. Louis Gr. 



decabrachiatus, Hall, 1858, Geo. Sur. 

 Iowa, p. 679, St. 

 Louis Gr. 



decadactylus, Meek & 

 Worthen, 1860, (Po- 

 teriocrinus decadac- 

 tylus,) Proc. Acad. 

 Nat. Sci. Phil., p. v^i Or 

 394, and Geo. Sur. \) Q , CJ ' 

 111., vol. 2, p. 238. V -^ 

 Keokuk Gr. 

 delicatus, Meek & 

 Worthen, 1869, 

 Proc. Acad. Nat. 

 Sci. Phil., p. 144, 

 and Geo. Sur. 111., 

 vol. 5, p. 407, Bur- 

 lington Gr. 

 depressus, Meek & 



Worthen, 1870, FJG . 4 23.-Scaphiocri- 

 Proc. Acad. Nat. nus decadactylus. 

 Sci. Phil., p. 27, Diagram. 

 and Geo. Sur. 111., 

 vol. 5, p. 492, Keokuk Gr. 

 dichotomus, Hall, 1858, Geo. Sur. Iowa, 



p. 553, Burlington Gr. 

 divaricatus, Hall, 1860, Supp. to Geo. 



Sur. Iowa, p. 65, Burlington Gr. 

 doris, Hall, 1861, Desc. New Crin., p. 7, 

 and Jour. Bost. Soc. Nat. Hist., vol. 7, 

 p. 312, Burlington Gr. 



elegantulus, Wachsmuth & 

 Springer, (in press) Geo. 

 Sur. III., vol. 8, p. 195, 

 Kinderhook Gr. 

 extensus, Wachsmuth & 

 Springer, 1886, Revis. 

 Palseocrinoidea pt. 3,. p. 

 237. Proposed instead 

 of Poteriocrinus asper, 

 Worthen, but the latter 

 name was not pre- 

 occupied. 



nscellus, Meek & Worthen, 

 1869, Proc. Acad. Nat. 

 Sci. Phil., p. 146, and 

 Geo. Sur. 111., vol. 5, p. 

 424, Burlington Gr. 

 gibsoni, White, 1878, 

 Proc. Acad. Nat. Sci. Phil., p. 31, and 

 Cont. to Pal., No. 8, p. 

 161, Keokuk Gr. 

 globosus, Wachsmuth & 

 Springer, (in press) Geo. 

 Sur. 111., vol. 8, p. 196, 

 Kinderhook Gr. 

 gurleyi, White, 1878, Proc. 

 Acad. Nat. Sci. Phil., p. 



32, and Cont. to Pal., FlQ . 4 25.-Scaph- 

 No. 8, p. 162, Keokuk Gr. iocrinus globo- 

 halli, Hall, 1861, Desc. sas - 

 New Crin., p. 7, and Jour. Bost. Soc. Nat. 

 Hist., vol. 7, p. 308, Burlington Gr. 



Flo. 424 Scaph 

 iocrinus ele 

 gantulus. 



