238 



ECHINODERMA TA. 



[DEN. 



barrisi, Worthen, 1875, (Calceocrinus bar- 

 risi, Geo. Sur. 111., vol. 6, p. 510, Ham. Gr. 

 bradleyi, Meek <i 

 Worthen, 1869, 

 (Calceocri nus 

 bradleyi,) Proc. 

 Acad. ' Nat. Sci. 

 ^"^^^ Phil., p. 73, and 

 FIG. 280. Deltacrinus Geo.Sur. III., vol. 5, 



bwrrtii. p. 502, Keokuk Gr. 



clarus, Hall, 1862, (Cheirocrinus clarus,) 

 15th Rep. N. Y. St. Mus. Nat. Hist., p. 

 88, Niagara Gr. 



dactylu^i, Hall, 1860, (Cheirocrinus dac- 

 tyjus,) 13th Rep. N. Y. St. Mus. Nat. 

 Hist., p. 123, Burlington Gr. 

 nodosus, Hall, 1860, (Cheirocrinus no- 

 dosus,) 13th Rep. N. Y. St. Mus. Nat. 

 Hist., p. 124, Keokuk Gr. 

 stigmatus, Hall, 1863, (Chei- 

 rocrinus stigmatus,)Trans. 

 Alb. Inst., vol. 4, p. 225, 

 Niagara Gr. 



tuniaitus, Hall, 1660, (Chei- 

 rocrinus tunicatus,) 13th 

 Rep. N. Y. St. Mus. Nat. 

 Hist., p. 124, Keokuk Gr. 

 wachsmuthi, Meek & 

 Worthen, 1869, (Cal- 

 ceocrinus wachsmuthi,) 

 Proc. Acad. Nat- Sci. Phil., 

 p. 74,and Geo. Sur. 111., vol. 



5, p. 444, Burlington Gr. 

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



8. 193. [Ety. dendrm, tree; krinon, 

 ly.] Calyx obconoidal ; basals 5 ; sub- 

 radials 5; radials 1x5, and an ad- 

 ditional one caused by a division of the 

 plate on the left side of the large azy- 

 gous one ; reg- 

 ular interradi- 

 als 0; nzygous 

 interradial 1 ; 

 large and long 

 proboscis or 

 ventral sac 

 rises from the 

 azygous inter- 

 radial ; arms 

 long, branch- 

 ing; ambula- 

 cral furrow deep ; pinnules wanting ; 

 column round or pentagonal ; without 

 base or roots for attachment. Type D. 

 longidactylus. 



acutidactylus, Billings, 1857, Rep. of Progr. 

 Geo. Sur. Can., p. 266, and Can. Org. 

 Rem., Decade 4, p. 37, Trenton Gr. 

 ancilla, Hall, 1879, Desc. New Spec. Foss., 

 p. 9, and llth Rep. Geo. and Nat. Hist. 

 Indiana, p. 271, Niagara Gr. 

 alternatus, Hall, 1847, (Poteriocrinus al- 

 ternatus,) Pal. N. Y., vol. 1, p. 83, Tren- 

 ton Gr. 



angulatus, see Palseocrinus angulatus. 

 angustatus, Meek & Worthen, 1870, (Ho- 

 mocrinus angustatus,) Proc. Acad. Nat. 

 Sci. Phil., p. 30, and Geo. Sur. 111., vol. 



6, p. 492, Hud. Riv. Gr. 



FIG. 282 Dendrocrinus. 

 Diagram. 



caduceus, Hall, 1866, 24th Rpp. N. Y. St. 



MUP. Nat. Hist., p. 208, Hud. Riv. Gr. 

 casii, Meek, 1871, Am. Jonr.Sri. and Arts, 



3d ser., vol. 2. p. 295, nd Ohio Pal., 



vol. 1, p. 28, Hud. Riv. Gr. 

 cincinnatiensis, Meek, 1872, Proo. Aoad. 



Nat. Sci. Phil., p. 312, and Ohio Pal., 



vol. 1, p. 20, Hud. Riv. Gr. 

 conjugans, Billings, 1857, Rep. of Progr. 



Geo. Sur. Can., p. 268, and Can. Org. 



Rem., Decade 4, p. 41, Trenton Gr. 

 celsus, RinguebHn:, 1888, Proc. Acad. Nat. 



Sci. Phil., p. 132, Niagara Gr. 

 curtus, see Merocrinus curt us. 

 cylindricus, Billings, 1859, Can. Org. 



Rem., Decade 4, p. 44, Trenton Gr. 

 dyeri, Meek, 1872, Proc. Acad. Nat. Sci. 



Phil., p. 310, and Ohio, Pal., vol. 1, p. 



24, Hud. Riv. Gr. 

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



Soc. Nat. Hist., vol. 4, p. 316, Hud. 



Riv. Gr. 

 gracilis, Hall, 1847,(Poteriocrinusgracilis,) 



Pal. N. Y., vol. 1, p. 84, Trenton Gr. 

 gregarius, Billings, 1857, R^p. of Progr. 



Geo. Sur. Can., p. 265, and Can. Org. 



Rem., Decade 4, p. 36, Trenton Gr. 

 humilis, Billings, 1857, Rep. of Progr. 



Geo. Sur. Can., p. 265, and Can. Org. 



Rem., Decade 4, p. 39, Trenton Gr. 

 jewetti, Billings, 1859, 



Can. Org. Rem., 



Decade 4, p. 43, 



Trenton Gr. 

 latibrachiaius, Bill- 

 ings, 1857, Rep. 



Prog. Can. Geo. 



Sur., p. 270, and 



Can. Org. Rem., 



Decade 4, p. 39, 



Hud. Riv. Gr. 

 longidactylus, Hall, _ 



1852, Pal. N. Y., FlQ . 283 .-Dendro- 



VOl. 2, p. 193, Nl- criu us jewetti. 



agara Gr. 



modtstns, Safford. Not defined, 

 navigiolum, S. A. Miller, 1880, Jour. Gin. 



Soc. Nat. Hist., vol. 3, p. 235, Utica 



Slate Gr. 

 nucleus, see Cyathocrinus nucleus. 



Fio. 281. Dendrocriuus oswegoensis. Diagram. 



oswegoensis, Meek & Worthen, 1868, Geo. 

 Sur. 111., vol. 3, p. 333, Hud. Riv. Gr. 



