BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 955 



Periechocrinus infelix (Winchell and Marcy). 



Megistocrinus infelix Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, 

 p. 110, pi. 2, fig. 7. 



Saccocrinus infelix Meek and Worthen, Geol. Surv. Illinois, 2, 1866, p. 210, foot- 

 note (gen. ref.). — Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 260, 

 pi. 6, figs. 2, 2a, 2b. 



Saccocrinus (Megistocrinus) inflexus Meek and Worthen, Geol. Surv. Illinois, 3, 

 1868, p. 349. 



Periechocrinus infelix Wachsmuth and Springer, Mem. Mus. Comp. Zool. , Harvard 

 (N. A. Crin. Cam.), 21, 1897, p. 525, pi. 50, fig. 2a-d.— Weller, Bull. Chicago 

 Acad. Sci., Nat, Hist. Surv., 4, pt. 1, 1900, p. 134, pi. 13, figs. 1, 2. 



Niagaran (Racine): Bridgeport and Romeo, Illinois. 



Periechocrinus marcouanus (Winchell and Marcy). 



Megistocrinus Marcouanus Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 



1865, p. 87, fig., pi. 2, fig. 5. 

 Saccocrinus Marcouanus Meek and Worthen, Geol. Surv. Illinois, 2, 1866, p. 210, 



footnote (gen. ref.). — Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 167, 



pi. 4, figs. 1, la. 

 Periechocrinus marcouanus Wachsmuth and Springer, Mem. Mus. Comp. Zool., 



Harvard, 21, 1897, p. 523, pi. 50, figs. 7a-b; pi. 51, fig. 5.— Weller, Bull. 



Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, pp. 130, 131, pi. 12, figs. 



2-4.— Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 536. 

 Niagaran (Racine): Bridgeport, Lemont, and Joliet, Illinois. 



Periechocrinus necis (Winchell and Marcy). 



Megistocrinus necis Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, 

 p. 110, pi. 2, fig. 6. 



Saccocrinus necis Miller, Jour. Cincinnati Soc. Nat. Hist,, 4, 1881, p. 172, pi. 4, 

 figs. 3, 3a. 



Periechocrinus necis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadel- 

 phia, 1885, p. 328 (Rev. Pal., pt. 3, sec. 1, p. 106); Mem. Mus. Comp. Zool., 

 Harvard (N. A. Crin. Cam.), 21, 1897, p. 524, pi. 50, fig. 1, a, b.— Weller, Bull. 

 Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, pp. 130, 133, pi. 13, figs. 

 5,6. 



Niagaran (Racine): Bridgeport, Hawthorne, and Cicero, Illinois. 



Periechocrinus ornatus (Hall and Whitfield). 



Saccocrinus ornatus Hall and Whitfield, Geol. Surv. Ohio, Pal., 2, 1875, p. 126, 

 pi. 6, figs. 7-9.— Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 917, 

 figs. 



Periechocrinus ornatus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1881, p. 306 (Rev. Pal., pt. 2, p. 132); Mem. Mus. Comp. Zool., 

 Harvard, 21, 1897, p. 527, pi. 50, figs. 3a, b; pi. 51, fig. 7. 



Periechocrinus (Saccocrinus) ornatus Grabau and Shimer, N. A. Index Fossils, 2, 

 1910, p. 537, fig. 1865. 



Habrocrinus ornatus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 

 1890, p. 368.— Slocom, Field Columbian Mus., Geol., 2d ser., 1908, p. 296. 



Niagaran: Yellow Springs, Ohio; St. Paul, Indiana (Laurel). 



Periechocrinus semiradiatus Wachsmuth and Springer. See Macrostylocrinus 

 semiradiatus. 



Periechocrinus speciosus Wachsmuth and Springer (part). See Periechoerh.us 

 dubius. 



84243°— Bull. 92— vol 2—15 16 



