[1922] 
V. Echinoderma. 
Echin. 21 
Ophiophthalmus with 0. suspectus 
sp. n. Malaysia, Koehler Bui. U. S. 
Nat. Mus. 5 No. 100 pp. 121-129 pi. vi 
figs. 1, 2. 
Ophiopleura, Scheuring 161 p. 150. 
Ophioplinlhaca with 0. haslata sp. n. 
Malaysia, Koehler Bui. U. S. Nat. 
Mus. 5 No. 100 pp. 131-147 pis. xviii 
figs. 6-8 ; xciv fig. 7. 
Ophioplocus, Campbell 22. — O., 
Koehler 109 p. 435. 
Ophiopluteus costatus , Malaysia ; O. 
undulatus, Indian Oc. ; O. fulcilus, opu- 
lenlus, formosus, Pacific Oc. ; O. fusus, 
Atlantic Oc. ; O. arcifer, Malaysia ; O. 
monacanthus , ofl Jolo ; O. retrospinus, 
Malaysia ; O. pusillus, diegensis, N. 
Pacific formae n., Mortensen Studies 
of devel. larval forms Ech. Copenhagen 
1921 pp. 134-170 pis. xxix fig. 6 ; xxx 
figs. 3-4 & figs, in text. 
Ophiopteris, Campbell 22. 
Ophiopteron , Koehler 109 pp. 301- 
305. 
Ophiopyren, Koehler 108 p. 36. 
Ophiopyrgus planulatus sp. n. Ma- 
laysia, Koehler Bui. U. S. Nat. Mus. 5 
No. 100 pp. 355-357 pi. lxxxi figs. 3, 4. 
Ophioripa gen. n. with O. marginata, 
nugator spp. n. Malaysia, Koehler Bui. 
U. S. Nat. Mus. 5 No. 100 pp. 117-121 
pi. xxiii figs. 1, 2, 8, 9. — O. conferta 
sp. n. Maria Isd., Koehler Austr. Ant. 
Exp. 1911-14 Sci. Repts., Zool. 8 p. 19 
pi. lxxxv figs. 9-13. 
Ophiosparte gen. n. with O. gigas 
sp. n. Southern Ocean, Koehler Austr. 
Ant. Exp. 1911-14 Sci. Repts. Zool. 8 
p. 21 pi. lxxvii figs. 1-8. 
Ophiosteira with O. cchinulala , debitor 
rolundata spp. n. Southern Ocean, 
Koehler Austr. Ant. Exp. 1911-14, 
Sci. Repts. Zool. 8 pp. 37-47 pis. lxxxii 
figs. 1-10 ; lxxxviii figs. 1-7, 9-13 ; 
lxxxvi figs. 1-5. 
Ophiostigma, Clark 35. 
Ophiothamnus with O. excavatus sp. n. 
Malaysia, Koehler Bui. U. S. Nat. Mus. 
5 No. 100 pp. 100-107 pi. xxii figs. 5-8. 
Ophiothela, Koehler 109 pp. 297- 
298. 
Ophiothrix with O. bellax, cumulala, 
deceptor , pavida, prostrata, signala spp. 
n. Malaysia, Koehler Bui. U. S. Nat. 
Mus. 5 No. 100 pp. 205-283 pis. xxxvi 
figs. 1, 2 ; xxxix figs. 1, 2, 6, 7 ; xlvii 
figs. 1, 3 ; 1 figs. 2-8 ; li figs. 1-5 ; lii 
figs. 1, 2 ; lviii figs. 1, 2 ; xcvii figs. 4, 
6 ; xcviii fig. 3. — O., Broch 19 p. 67. — 
O., Campbell 22. — O., Clark 35. — 
O., Scheuring 161 p. 151. 
Ophiotoma , Koehler 109 pp. 91-95. 
Ophiolrema lertium sp. n. Malaysia, 
Koehler Bui. U. S. Nat. Mus. 5 No. 100 
pp. 88-91 pi. xxi figs. 2, 3, 7. 
Ophiolrela with O. spatulifera sp. n. 
Malaysia, Koehler Bui. U. S. Nat. 
Mus. 5 No. 100 pp. 70-84 pi. xix figs. 
5, 6. 
Ophiozona, Clark 35. 
Ophiozonella with O. subtilis sp. n. 
Malaysia, Koehler Bui. U. S. Nat. Mus. 
5 No. 100 pp. 422-431 pi. lxxix figs. 3, 
4, 9, 11,12. 
Ophiozonoida obscura sp. n. Malaysia, 
Koehler Bui. U. S. Nat. Mus. 5 No. 100 
pp. 431-434 pi. lxxx figs. 8, 9, 13. 
Ophiura with O. fluctuans, mitescens 
spp. n. Malaysia, Koehler Bui. U. S. 
Nat. Mus. 5 No. 100 pp. 373-386 pis. 
lxxxi figs. 7-9 ; lxxxv figs. 2-5. — O., 
Broch 19 pp. 58-62. — O. Koehler 108 
p. 52. — O., Scheuring 161 p. 150. 
Ophiurodon, Koehler 109 pp. 351- 
352. 
Ophiuroidea, Clark 34. 
Ophiurolepis with O. tumescens , 
Southern Ocean ; O. accomodala, Maria 
Isd. ; O. mordax, Southern Ocean spp. 
n., Koehler Austr. Ant. Exp. 1911-14 
Sci. Repts. Zool. 8 pp. 59-82 pis. lxxxiv 
figs. 7-11, 17 ; lxxxvi figs. 7-10, 18, 19 ; 
lxxxvii figs. 6-14 ; lxxxviii figs. 11-17 ; 
xc figs. 7, 22. 
Pectinura , Koehler 109 pp. 337-338. 
Stegophiura with S. sterilis sp. n. 
Malaysia, Koehler Bui. U. S. Nat. Mus. 
5 No. 100 pp. 369-373 pi. lxxxiii figs. 
8 - 11 . 
Crinoidea. 
f Acanthocrinus, Dahmer 45 p. 291. 
— A., Ehrenberg 56 p. 277. 
Antedon, Scheuring 161 p. 151. 
