lb Echin. 
V. Echinoderma. 
[ 1020 ] 
Ophiolebes, Stephensen 120. 
Ophiopholis, Stephensen 120. 
Ophioscolex, Stephensen 120. 
Ophiosteira kcehleri sp. n. off Coast of 
Ecuador, Clark Proc. Biol. Soc. Wash- 
ington 30 p. 173. 
Ophiura , Stephensen 120. 
Ophiuroidea, Arndt 5. — 0 ., Clark 
33. — O ., Mobtensen 102. 
F. — Cbinoidea. 
t Abrachiocrinus, Wanner 133. 
f Actinocrinus, Benson, Dun & 
Browne 12. 
■\Allagecrinus, Weight 138. 
t Amphicrinus scoticus Lower Carbon 
Scotland, carbonarius Carbon. U.S.A. 
spp. n., Springer Crinoidea Flexibilia 
Washington 1920 pp. 338, 341 pi. iv 
figs. 9-11, 12a, b. — A., Wright 138. 
f Anisocrinus irregularis sp. n. Silu- 
rian, Springer Crinoidea Flexibilia 
Washington 1920 p. 165 pi. x figs. 5-6. 
■\Antedon, Fourtau 58. — A., Musper 
103. 
f Apiocrinus, Gemmellaro 61. 
■ \Arthracantha , Thomas 124. 
f Asaphocrinus gen. n. Lecanocrinidae 
with A. bassleri sp. n. Silurian, Springer 
Crinoidea Flexibilia Washington 1920 
p. 174 pis. iv, x figs. 10-14. 
■\Balanocrinus, Musper 103. — B., 
Welsch 134. 
■\Cactocrinu8 ? brownei sp. n. Lower 
Carbon. New S. Wales, Benson, Dun & 
Browne Proc. Linn. Soc. N.S.W. 45 
p. 342. 
■ \Caleidocrinus , Springer 117. 
'j ‘Calpiocrinus intermedins, rotundatus, 
peculiaris spp. n. Silurian, Springer 
Crinoidea Flexibilia Washington 1920 
pp. 166, 159 pis. vii figs. 1-3, 6a-c, 
viii figs. 6-8. 
■ \Cwabocrinus , Bassler 9. 
■\Canjocrinites , Foerste 56. 
■\Cholocrinus, Springer 117. 
■\Cleiocrinus, Springer 117. 
■\Cleistocrinus gen. n. Ichthyocrinidae , 
Springer Crinoidea Flexibilia Wash- 
ington 1920 p. 293 pi. xxxviii figs. 1-2. 
t Clidochirus americanus Silurian 
U.S.A., C. keyserensis Helderbergian 
U.S.A. spp. n., Springer Crinoidea 
Flexibilia Washington 1920 p. 298 pi. 
xxxvii figs. 7-11. 
\Coenocystis, Wanner 133. 
■ \Crinocystites , Foerste 52. 
Crinoidea, Arndt 5. — C., Clark 33. 
f Crinoidea, Butts 19. — C., Cayeux 
23. — C., Clemes 34. — C., Foerste 54. 
■\Cromyocrinus, Wright 138. 
\Cydonocrinus, Springer 117. 
f Dactylocrinus alpena sp. n. Devon., 
Springer Crinoidea Flexibilia Wash- 
ington 1920 p. 312 pi. xli figs. 10a, b. 
•\Edriocrinus adnascens sp. n. Devon. 
U.S.A., Dunbar New Haven Conn. 
Trans. Acad. Arts. Sci. 23 p. 120. — 
E. occidentals, explicalus, adhaerens 
Helderbergian U.S.A., E. holopoides 
Oriskany Sandstone U.S.A. spp. n., 
Springer Crinoidea Flexibilia Washing- 
ton 1920 pp. 449, 451, 452 pi. lxxvi 
figs. 6-18, 22a-b, 23. 
■\Embryocrinus gen. n. E. problema- 
ticus sp. n. Ordovician New York State, 
Hudson Albany N.Y. St. Mus. Bull. 
196 p. 162. — E., Wanner 133. 
Eucalyptocrinus, Foerste 52. 
\Eupachycrinus, Wright 138. 
\Euryocrinus barrisi Devon, U.S.A., 
E. tennesseensis Lower Carbon. U.S.A., 
spp. n., Springer Crinoidea Flexibilia 
Washington 1920 pp. 316, 318 pi xl 
figs. 1-3, 6a-c. 
f Eutaxocrinus eifelensis, perplexus 
Devon. Europe, whiteavesi, pulcher, 
ampins Devon U.S.A., montanensis 
Lower Carbon. U.S.A. spp. n.,. Springer 
Crinoidea Flexibilia Washington 1920 
pp. 364-366, 369, 370, 372 pis. xlvii 
figs. 18a, b, xlix figs. 1-7, 13, 1 fig. 20, 
lxxv fig. 10. 
■\Forbesiocrinns burlingtonensis sp. n. 
Upper Burlington Iowa, Springer 
Crinoidea Flexibilia Washington 1920 
p. 253 pi. xxvi figs. 3-5. 
\Qnorimocrinus cirrifer, varians 
spp. n. Silurian, Springer Crinoidea 
Flexibilia Washington 1920 p. 355 
pi. xlvii figs. 7-17. 
