18 Echin. 
V. Echinoderma. 
[1921] 
Ophiuroidea. 
Amphilepis, Mortensen 94. 
Amphioda peloria sp. n. Puget Sound, 
Bush Pub. Puget Sd. Biol. St. Seattle 3 
p. 71 pi. ix. 
Amphiodia, Clark 21. 
AmjAiiopholis, Bush 16. 
Amphiura with A. griegi sp. n. Nor- 
way, Mortensen Vid. Med. Nat. For. 
72 pp. 54-60. 
Amphiuridae, Clark 23. 
Ophiacantha lineata, Kcehler 75. 
Ophiacanthidae , Clark 23. 
Ophiactis nularosiensis sp. n. Norway, 
Mortensen Vid. Med. Nat. For. 72 pp. 
60-63. 
Op h ioch i t o ni dae, Clark 23. 
t Ophiocoma, Bell 7. 
Ophiocomina, Mortensen 94. 
Ophiocomidae, Clark 23. 
-| Ophiocnida, Bell 7. 
Ophiocten latens, Kgetiler 75. — 0 ., 
Clark 21. 
\Ophioderma, de Brun & Vedel 15. 
Ophiodermatidae, Clark 23. 
t Ophioglypha, Winton & Adkins 
133. 
Opltiolebes bocata sp. n. Campagne 
1911 Station 3113, 32° 34' 45" N. ; 17° 
05' 30" W. 1700 m., K<ehler Bui. Inst. 
Ocean. Monaco 396 p. 5 fig. 
Ophioleda minima , Kcehler 75. 
Ophiolepididae, Clark 23. 
■ \Ophiolepis , Bell 7. 
Ophiomaria gen. n. with O. tenella 
sp. n. Type S. Pacific, Clark J. Wash. 
Acad. Sci. 6 p. 384. 
Ophiomitrella, Mortensen 94. 
Ophiopholis, Bush 16. — O., Clark 
21 . 
Ophiopsila with O. calif arnica sp. n. S. 
California, Clark Proc. Biol. Soc. Wash- 
ington 34 1921 p. 109. 
Ophioscolex, Mortensen 94. 
Ophiothrix with O. mertensi australis 
subsp. n. Torres Straits, Clark Dept. 
Mar. Biol. Carnegie Inst. 10 p. Ill pi. 
xv fig. 4. — O.fragilis , Kcehler 75. 
Ophiotrickidae, Clark 23. 
Ophiozea , Clark 21. 
Ophiura aurantiaca, Kcehler 75. — • 
O., Bush 16. — O., Clark 21. — O., 
Mortensen 94. 
f Ophiura, , Bell 7. 
Ophiuroidea, Clark & Wheeler 34. 
— O., Kcehler 75. 
Stcgophiura, Clark 21. 
Trichastcridae, Clark 23. 
Crinoidea. 
'\Acrocrinus, Clarke 35. 
f Actinocrinus mvltiramosus, Clarke 
36. — A., Clarke 35. 
f Agaricocrinus, Clarke 35. 
IfAgassizocrinus dissimilis sp. n. Paint 
Creek formation U.S.A., Weller Bull, 
geol. Surv. 111. Urbana 41 p. 344 pi. v 
figs. 29-30. 
■\Amccyslis gen. n., Ulrich & Kirk 
Proc. Biol. Soc. Washington 34 pp. 
147-148. 
Andromeira gen. n. Type Antedon 
psyche Cl., Clark J. Wash. Acad. Sci. 7 
p. 128. 
Antedon, Mortensen 94. 
| Antedon, Bell 7. 
Antedonidae, Clark 23 28 & 30. 
fApiocrinus, Moutier 95. 
Argyrometra gen. n. type Iridometra 
crispa Cl. with A. mortenseni sp. n. New 
Zealand, Clark J. Wash. Acad. Sci. 7 
pp. 128-129. 
Austromeira gen. n. Tjqie Oligometra 
thetidis Cl., Clark J. Wash. Acad. Sci. 
6 p. 115. 
Bathycrinus, Clark 29. 
Bourgueticrinidae, Clark 29. 
Bythocrinus, Clark 29. 
Calyptometra gen. n. Type Charito- 
metra lateralis Cl., Clark J. Wash. 
Acad. Sci. 6 p. 608. 
Chondromclra gen. n. Type C. robusia 
Cl., Clark J. AVash. Acad. Sci. 6 p. 608. 
Colobometridae, Clark 23. 
\Comanthocrinus gen. n. with C. pris- 
ons sp. n. Devon U.S.A., Springer 
Smiths. Inst. U.S. Nat. Mus. Bull. 115 
pp. 4-7. 
