232 



ECHINODERMA TA. 



[CXO. — COD. 



magnificus, Billings, 1859, Can. Org. Rem., 



Decade 4, p. 54, Trenton Gr. 

 regius, Billings, 1857, Rep. of Prog. Geo. 



Sur. Can., p. 277, and Can. Org. Rem., 



Decade 4, p. 53, Trenton Gr. 



Pig. 264.— Cleiocrlnus regiua. Diagram. 



Ci/Osterocrincs, Hall, 1852, Pal. N. Y., vol. 

 2, p. 79. [Ety. klosttr, a spindle ; krinon, 

 lily.] Body obconic; basals 3; sub- 

 radials 1x5; number of radials un- 

 known; azygous interradials present; 

 arms composed of a single series of 

 plates; column round. Type C. elon- 

 gatus. 

 elongatus, Hall, 1852, Pal. N. Y., vol. 2, 

 p. 179, Clinton Gr. 



Coccocrinus, Muller, 1855, Verband, Natur- 

 hist. Vereins Rhein und Westph., Jabr. 

 12, p. 20. [Ety. kokkos, a berry ; krinon, 

 lily.] Basals 3; radials 2x5; inter- 

 radials 1 ; column round ; distinguished 

 from Haplocrinus by the characters of 

 the first r;u 1 ials and the oral plates, and 

 from Platycrinus by the character of 

 the vault which is composed of five 

 oral plates resting upon the five inter- 

 radials, and by the character of the 

 column. Type C. rosaceus. 



^ 



Fig. 265.— Coccocrinus bacca. 



bacca, Roemer, 1860, Sil. Fauna West 

 Tenn., p. 57, Niagara Gr. 

 Codastkr, McCoy, 1849, Ann. & Mag. Nat. 

 Hist., 2d ser., vol. 3, p. 250. [Ety. kodon, 

 a bell ; aster, star.] Calyx inverted 

 conical ; summit broad ; basals 3, one 



tetragonal and two pentagonal, each 

 having its inner apex notched to form 

 part of the round columnar canal; 

 radials 1x5, large, equal, reaching to 

 the truncated summit, to which, from 

 their mesial gibbosity, they 

 give a pentagonal outline; 

 deltoid plates on the sum- 

 mit; mouth central, and 

 from it five prominent 

 ambulacra diverge, one to 

 each angle, each being on 

 a thick tapering ridge, 

 divided by a mesial sul- 

 cus; from the re-entering 

 angles of these interradial 

 ridges four other ridges 

 extend to the middle of 

 the four straight sides, the 

 fifth space having DO ridge, 

 but, instead, a Urge ovate 

 opening; bydrospire slits 

 in four interradial areas 



but no bydrospire canals, 



and no pores. Type C. 



acutU8. 



alUrnalut, Lyon, 1857, Geo. 



Stir. Ky., vol. :;, p. m:;. A 



misprint forC. attenuatus. 



americanus, Shumard, 1858, 



Trans. St. Louis Acad. 



Rci., vol. 1, p. 289, Up. 



Held. Gr. Byn. (?) for 



C. pyrainidatus. 



attenuatus, Lyon, ]H.">7, 



Sur. Kv., vol. 



3, p. 493-498, Up. 



Held Gr. 



canadensis, Billings. 



Not defined, 

 gratiosus, S. A. Miller, 

 1880, Jour. Cin. Soc. 

 Nat. HiBt, vol. 2, p. 

 257, Keokuk Gr. The « 

 hydrospire slits are 

 visible on the casts 

 but are very fine, 

 hindii, Etheridge & Carpenter, 1882, Ann. 

 and Mag. Nat. Hist., p. 235, Ham. Gr. 

 C. canadensis. (?) 

 kentuckiensis, Shumard, 1858, Trans. St. 

 Louis Acad. Sci., vol. 1, p. 239, Burling- 

 ton Gr. 

 pentalobiu, see Stephanocrinus pentalobus. 



f» 



in;. 266 - Ood aster 



ami side view of 

 cast, the latter 

 ■bowing an aper- 

 ture ai tbarammlt 



Fig. 2«7. — Codaster pulchellus. Summit and 

 side views. 



pulchellus, Miller & Dyer, 1878, Jour. Cin. 



Soc. Nat. Hist., vol. 1, p. 35, Niagara 



Gr. Possibly a Stephanocrinus. 

 pyramidatus, Shumard, 1858, Trans. St. 



Louis Acad. Sci., vol. 1, p. 238, Up. 



Held. Gr. 



