12 Echin. 
V. Echinoderma. 
[1922] 
Permian. — Diener, 53. 
Carboniferous. — Bather, 8, 9; Benson ; 
10; Huffner, 94; Mansuy, 128; 
Morninqstar, 134; Weigelt, 181. 
Devonian. — Barrois, Pruvost and 
Dubois, 5; Bather, 8; Bonarelli, 
13; Daiimer, 43, 44 & 45; Fenton, 
63; Mansuy, 128 & 129; Robert, 
158 & 159; Spriestersbach, 167. 
Silurian. — Bather, 8 ; Carstens, 23 ; 
Freyburg v., 71 ; Spencer, 166. 
Ordovician. — Cox, 40 ; Foerste, 67 ; 
Mansuy, 129. 
III.— SYSTEMATIC INDEX. 
General. 
Echinodermata, Goldring 84. 
Echinodermata development and 
larval forms, Mortensen 137. 
Holothurioidea. 
Actinopyga difficilis, parvula and A. 
bedfordi sp. n. Pacific Ocean, 
Deichmann Videns. Medd. nat. For. 
Kjobenhavn 73 p. 207. — A., Clark 38 
p. 151. 
Amphipholis, Deichmann 48 p. 200. 
Argiodia, Deichmann 48 p. 210. 
Astichop'us gen. n. genotype Stichopus 
multifid us Sluiter, Clark Bui. Mus. 
Comp. Zool. Cambridge Mass. 65 p. 48. 
Benthodytes with B. regularis sp. n. 
Pacific, Clark Mem. Mus. Comp. Zool. 
Cambridge Mass. 39 pp. 141-142 pi. ii 
figs. 1, 2. 
Caph&ira, Clark 38 p. 138. 
Ceraplectana , Clark 38 p. 130. 
Chirodola with C. aponocrita sp. n. 
Pacific, Clark Mem. Mus. Comp. Zool. 
Cambridge Mass, 39 p. 125 pi. iv figs. 
1 , 2 . 
Cucumaria, Clark 38 p. 131. — 6'., 
Deichmann 48. — G., Sciieuring 161 
p. 152. 
Diadema, Deichmann 48 p. 206. 
Echinocucumis, Clark 38 p. 131. 
Euphronides with E. dyscrita sp. n. 
Pacific, Clark Mem. Mus. Comp. Zool. 
Cambridge Mass. 39 p. 139 pis. i fig. 2 ; 
ii fig. 3. 
Eupyrgus, Sciieuring 161 p. 153. 
Hamplodacdyla [i.e., Haplodactyla ] 
molpadioides , Ann and ale 2. 
Holothuria, Clark 38 pp. 147-150. — 
II. surinamensis, Deichmann 48. 
Laetmophasma, Clark 38 p. 138. 
Mesothuria with M. megapoda, multi- 
pora, spp. n.. Pacific, Clark Mem. Mus. 
Comp. Zool. Cambridge Mass. 39 
pp. 143-144 pi. iv figs. 9-13. 
Molpadia with iff. bathybia sp. n. 
Pacific, Clark Mem. Mus. Comp. Zool. 
Cambridge Mass. 39 p. 129 pis. iii figs. 1 
2, iv. figs. 5, 6. 
Mullzria , Deichmann 48. 
Myriolroclius bathybius, giganteus, 
spp. n.. Pacific, Clark Mem. Mus. Comp. 
Zool. Cambridge Mass. 39 pp. 126-128 
pi. iv figs. 3, 4. — ilf., Scheuring 161 
p. 153. 
Oneirophanta, Clark 38 p. 136. 
Parelpidia anamesa sp. n. Pacific, 
Clark Mem. Mus. Comp. Zool. Cam- 
bridge Mass. 39 p. 132 pi. iii fig. 3. 
Pelagothuria, Clark 38 p. 132. 
Peniagone with P. bispiculata sp. n. 
Pacific, Clark Mem. Mus. Comp. Zool. 
Cambridge Mass. 39 pp. 135-136. 
Periamma tetramerum sp. n. Pacific, 
Clark Mem. Mus. Comp. Zool. Cam- 
bridge Mass. 39 p. 134 pi. ii fig. 4. 
Phyllojihwus, Scheuring 161 p. 151. 
Protankyra, Clark 38 p. 124. 
Pseudocucumis, Clark 38 p. 131. 
Pseudosticopus , Clark 38 p. 146. 
P solus, Scheuring 161 p. 152. 
Psychropotes, Clark 38 p. 140. 
