238 



ECHINODERMA TA. 



[DKN. 



Fig. 280. — Deltacrinus 

 barrisi. 



barrisi, Worthen, 1875, (Calceocrinus bar- 

 risi, Geo. Sur. 111., vol. 6, p. 510, Ham. < I r. 

 bradleyi, Meek & 

 Worthen, 186 9, 

 (Calceocrinus 

 bradleyi,) Proc. 

 Acad. " Nat. Sci. 

 Phil., p. 73, and 

 Geo. Sur. 111., vol. 5, 

 p. 502, Keokuk (Jr. 

 clarus, Hall, 1862, (Cheiroerinus clarus,) 

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

 88, Niagara < J r. 

 dactylus, Hall, 1860, (Cheiroerinus dac- 

 tyl us,) 13th Rep. N. Y. St. Mus. Nat. 

 Hist., p. 123, Burlington (Jr. 

 nodosus, Hall, 1860, (Cheiroerinus no- 

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

 Hist., p. 124, Keokuk (Jr. 

 stigmatuB, Hall, 1863, (Chei- 

 roerinus 8tigmatus,)Trans. 

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

 Niagara (Jr. 

 tunicatus, Hall, 1660, (Chei- 

 roerinus tunicatus,) 13th 

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

 Hist., p. 124, Keokuk (ir. 

 wachsmuthi Meek & Fl t ^rfnn7X'- 

 Worthen, 1869, (Cal- matus. Dor- 

 ceocrinu8 wachsmuthi,) «*l view of 

 Proc. Acad. Nat. Sci. Phil., f a [ y * d eD 2 

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



5, p. 444, Burlington (Jr. 

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



p. 193. [Ety. dendron, tree; krinon, 

 lily.] Calyx obconoidal ; basals 5 ; sub- 

 ranials 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; azygous 

 interradial 1 ; 

 large and long 

 proboscis or 

 ventral sac 

 rises from the 

 azygous inter- 

 nulial; 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. 

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

 p. 9, and 11th Rep. Geo. and Nat. Hist. 

 Indiana, p. 271, Niagara (Jr. 

 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.— Dendrocrlnus 

 Diagram. 



caduceus, Hall, 186(5, 24th Rep. N. Y. St. 



Mus. Nat. Hist, p. 208, Hud. Riv. (Jr. 

 casii, Meek, 1871, Am. Jour.N.i. ;m«l Arts, 



3d ser., vol. 2. p. 296, and Ohio Pal., 



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

 cincinnatiensis, Meek, 1872, Proc. Acad. 



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



vol. 1, p. 20, Hud. Riv. (Jr. 

 conjugans, Billings, 1857, Rep. of Progr. 



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



Rem., Decade 4, p. 41, Trenton (Jr. 

 celsus, Ringueberg, 1888, Proc Acad. Nat. 



8ci. Phil., p. 132, Niagara (ir. 

 curttA, see Merocrinua curt us. 

 cylindricus, Billings, 1869, Can. Org. 



Rem., Decade 4, p. 44, Trenton (Jr. 

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



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



24, Hud. Riv. (Jr. 

 erraticus. S. A. Miller, 1NS1, .lour. Cin. 



Soc. Nat. Hist., vol. 4, p. 310, 1 1ml. 



Bir. Gr. 

 gracilis, Hall, 1847,(Poteriocrin us gracilis,) 



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

 gregarius, Billings, 1857, Rep. of Progr. 



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



Rem., Decade 4, p. 36, Trenton < Jr. 

 huinilis, Billings, 1857, Rep. of Progr. 

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



Rem., Decade 4, p. 39, Trenton (Jr. 

 jewetti, Billings, 1859, 



Can. Org. Rem., 



Decade 4, p. 43, 



Trenton (Jr. 

 latibrachiatus, Bill- 

 ings, 1857, Rep. 



Prog. Can. Geo. 



Sur., p. 270, and 



Can. Org. Rem ., 



Decade 4, p. 39, 



Hud. Riv. (Jr. 

 longidactylus, Hall, 



1852, Pal. N. Y., F iG.288.-Den<lro- 



VOl. 2, p. 193, Nl- crinus jew.in. 



agara < J r. 

 modeslus, Safford. Not denned. 

 DAYigiolam, s. A. Miller, 1880, Jour. Cin. 

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



Slate <ir. 

 nucleus, see Cyathocrinus nucleus. 



Fig. 284.— Dendrocrluus oswegoeusis. Diagram 



oswegoensis, Meek & Worthen, 1868, Geo. 

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



