[1921] 
V. Echinoderma. 
Echin. 19 
Comasleridae , Clark 23. 
Comatonia gen. n. Type Actinomelra 
cristata, (Carp.) Hartl., Clark J. Wash. 
Acad. Sci. 6 p. 115. 
Compsometra serrata, Mortensen 93. 
Cotylometra gen. n. Type Oligomctra 
gracilicirra Cl., Clark J. Wash. Acad. 
Sci. 6 p. 116. 
Crinoulea, Agos 2. — <7., Clark 19 & 
22. — €., Clark & Wheeler 34. 
f Crinoidba, Clark 19. — C., Clark & 
Wheeler 34. 
\Cromyocrinus, Clarke 35. 
Crossometra gen. n. Type Pachylo- 
metra invesligatoris Cl., Clark J’. Wash. 
Acad. Sci. 6 p. 606. 
Darometra gen. n. Type Anledon nana 
Hartl., Clark J. Wash. Acad. Sci. 7 p. 
128. 
Democrinus, Clark 29. 
Diadalometra gen. n. Type Anledon 
Juina Cl., Clark J. Wash. Acad. Sci. 6 
p. 116. 
f Dichocrinus girtyi sp. n. Shetlerville 
formation U.S. A., Weller Bull. geol. 
Surv. 111. Urbana 41 pp. 334-336 pi. v 
figs. 5-12. 
t Dizygoc-rinus, Weller 130. 
f Dolatocrinites, Springer 120. 
f Dolatocrinus with D. pyramidalus, 
rotundus, exstans, ineisus spp. n. Devon 
U.S.A., Springer Smiths. Inst. U.S. 
Nat. Mus. Bull. 115 pp. 16-57. 
f Dorycrinus, Clarke 35. 
\Eucladocrinus, Clarke 35. 
Fariometra gen. n. Type Trichomelra 
explicala Cl., Clark J. Wash. Acad. Sci. 
7 p. 130. 
Florometra serratissima, Morten sen 
93. 
■ \Gilbertsocrinus , Clarke 35. 
f Globocrinus gen. n., Weller Bull. 
Geol. Surv. 111. Urbana 41 pp. 330-333. 
■ \Graphiocrinus hard, McCourt 91. 
f Hadrocrinus, Springer 120. 
f Herpelocrinus, Thomas 123. 
IfHexacrinus, Collin 37. 
f Himerocrinus gen. n., for type 
Hadrodnus plenissimus Lyon, Springer 
Bull. U.S. Nat. Mus. 115 p. 12. 
Id inter ometridae, Clark 23. 
Holopus, Clark 31. 
Ilycrinus, Clark 29. 
Isometra vivipara, Mortensen 93. 
f Lecylhocrinus, Collin 37. 
Mariametridae, Clark 23. 
■\Melocrinidae, Springer 120. 
f Melocrinus borealis, M. canadensis 
spp. n. Devonian Upper Canada, 
Springer Mus. Bui. Ottawa 33 1921 pi. i 
figs. 1-3. — M. occidentals Oehlert, 
Collin 37. 
Monachocrinus gen. n. with M. sexra- 
diatus sp. n. N. Atlantic, Clark J. Wash. 
Acad. Sci. 7 pp. 390-391. 
Monachomelra gen. n. Type Pachylo - 
metra fragilis Cl., Clark J . Wash. Acad. 
Sci, 6 p. 607. 
Nepiometra gen. n. Type Anledon 
laevis Carp., Clark J. Wash. Acad. Sci. 
7 p. 130. 
Notocrinus virilis, Mortensen 93. 
Oceanometra gen. n. Type Thalasso- 
metra gigantea Cl., Clark J. Wash. 
Acad. Sci. 6 p. 606. 
Orlhometra gen. n. Type Trichomelra 
hibernica Cl., Clark J. Wash. Acad. Sci. 
7 p. 129. 
f Pachylocrinus cachensis sp. n. Paint 
Creek formation U.S. A., Weller Bull, 
geol. Surv. 111. L T rbana 41 p. 343 pi. 
viii fig. 35. 
Perissomelra gen. n. Type Anledon 
flexilis Carp., Clark J. Wash. Acad. 
Sci. 6 p. 606. 
Phrixometra gen. n. Type Anledon 
longipinna Carp., Clark J. Wash. Acad. 
Sci. 7 p. 131. 
f Physelocrinus, Clarke 35. 
f Platycrinus, Clarke 35. — P., Wel- 
ler 130. 
f Pleurocystis, Ulrich & Kirk 126. 
f Poleriocrinus, Clarke 35. 
Pscudosaccocoma slrambergense 
Remes, Gemmellaro 57a. 
IfPterolocrinus with P. serratus, men - 
ardensis spp. n. Lower Carbon U.S.A., 
Weller Bull. geol. Surv. III. Urbana 
41 pp. 342 360 372-373 pis. v figs. 24- 
26 ; xi fig. 9. — P., Clarke 35. 
