288 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Crania spinigera Hall. 



Crania spinigera Hall, Descriptions n. sp. Foss. Waldron, Indiana, 1879, p. 13; 

 llth Rep. State Geol. Indiana, 1882, p. 283, pi. 27, fig. 1; Trans. Albany 

 Inst., 10, 1883, p. 69. Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 

 4H, fig. 17. 



Niagaran (Waldron): Waldron, Indiana. 



Crania trentonensls Hall. 



Crania trentonensis Hall, Desc. n. sp. Crinoidea and other Fossils, 1866, p. 12; 

 24th Rep. New York State Cab. Nat. Hist., 1872, p. 219, pi. 7, figs. 11, 12. 

 Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pi. 4H, figs. 21, 22. Win- 

 chell and Schuchert, Geol. Minnesota, 1893, p. 374, pi. 29, figs. 36, 37. 

 Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 207, .fig. 241c-d. 



Trenton: Middleville, New York; Cannon Falls, Minnesota; Janesville, Wis- 

 consin; Dixon, Illinois. 



CRANIELLA (Ehlert. See Petrocrania Raymond. 

 CRANIOPS Hall. See Pholidops Hall. 



Crateripora Ulrich. 



Crateripora Ulrich, Jour. Cincinnati Soc. Nat. Hist., 2, 1879, p. 29. 

 Observation. The forms for which this genus was proposed have been found to 

 be the basal articulating sockets of species of Escharopora and Arthropora. 



CEATERIPORA ERECTA Ulrich. See Arthropora shafferi. 

 CRATERIPORA LINEATA Ulrich. See Escharopora falciformis. 

 CRATERIPORA LINEATA var. EXPANSA Ulrich. See Escharopora falciformis. 

 CRATEROPHYLLUM Foerste. See Chonophyllum, subgenus Craterophyllum. 



CREMACRINUS Ulrich. Genotype: C. punotatus Ulrich. 



Cremacrinus Ulrich, Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 14, 1886, p. 

 107. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, 

 p. 201 (Rev. Pal., pt. 3, sec. 2, p. 277). Ringueberg, Ann. New York Acad. 

 Sci., 4, 1889, p. 396, 405. Bather, Treatise on Zool. (Lankester), pt. 3, 1900, 

 p. 148. Springer, Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 213. 



Castocrinus Ringueberg, Ann. New York Acad. Sci., 4, 1889, p. 392, pi. 11, fig. 1; 

 Bather Ann. Mag. Nat. Hist., 6th ser., 5, 1890, p. 332, pi. 14, fig. 9; Kongl. 

 Sv.Vet. Akad. Handl., 25, No. 2, 1893, p. 21, 58, 61, fig. 13a, 63. Miller, 

 N.A. Geol. Pal., 2d App., 1907, p. 740. Bather, Treatise on Zool., pt. 3, 

 Echinoderma, London, 1900, p. 148, fig. 61, 1. Wachsmuth, Zittel-Eastman 

 Textb. Pal., 1, 1900, p. 154. Zittel, Grundzuge Pal., 1, 1910, p. 152. 

 Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1890, p. 387. 

 (Genotype: Calceocrinus furcillatus Billings.) 



Cremacrinus articulosus (Billings). 



Heterocrinus articulosus Billings, Geol. Surv. Canada, dec. 4, 1859, p. 51, pi. 4, 



fig. 8. 

 Calceocrinus (Heterocrinus) articulosus Walcott, 35th Rep. New York State Mus. 



Nat. Hist., 1883, p. 212. 

 Calceocrinus articulosus Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phil 



delphia, 1886, p. 130 (Rev. Pal., pt. 3, sec. 2, p. 206). Ulrich, 14th Ann. 



Geol. Nat. Hist. Surv. Minnesota, 1886, p. 113. 



