19 Echin. 
Development, Ethology. 
1015, 1019 
Development of isolated pieces of 
the gastrulae of Strongplocentrotus ; 
Jenkinson, 121. 
Hybridization of Echinoids ; Shearer, 
De Morgan & Fuchs, 208 : of Echinus 
miliaris and E. acutus ; Fuchs, 84 : 
of E. miliaris and E. esculentus ; 
Gardiner, 86 : of Echinus and Echino- 
cardium; MacBride, 165. 
Kombination der heterogenen Be- 
fruchtung mit der lriinstlichen Parthe- 
nogenese ; Antagonismus der Ein- 
wirkung dos Sperm as von vorschiedenon 
Tierklassen ; Go die w ski, 93. 
ETHOLOGY. 1019 
1. General accounts. 
Of Sea Urchins ; Bather, 10 : of 
Palaeozoic and Mesozoic Echinoids ; 
Tornquist, 230. 
Of Stelleroids; Bather, 11: of 
Amphiura ; Arts, 4. 
Of Pelmatozoa ; Kirk, 126. 
2. Special habits. 
Rock boring by Strong ylocentrotus ; 
Romanes, 197. 
Effects of light and contact with 
solid walls on behavior of ophiuroids ; 
Cowles, 61. 
Eleutherozoic habits among Pel- 
matozoa; Kirk, 126. 
3. Habitat. 
Of Sea-urchins and Starfish; Siiss- 
bach & Breckner, 224 : of Pelmatozoa ; 
Kirk, 126. 
Of Greenland Echinoderms ; Mor- 
tensen, 181 : Bathymetric and tem- 
perature ranges of N. Pacific Ophiuroi- 
dea ; Clark, H. L., 52. 
Burial in sand of Spatangids ; Horny- 
old, 112. 
4. Feeding. 
Feeding Habits of Spatangids ; 
Hornyold, 112: of Crinoidea; Kirk, 
126. 
Influence of feeding habits on 
evolution of Echinoids ; Boev ill#, 71 : 
Hawkins, 105. 
(n -9186 m) 
5. Defence- and Protection. 
Variation in degree of calcification 
during life of Ophiurids ; Clark, H. L., 
52. 
Colouring of Strong ylocentrotus ; 
Awerinzew, 7. 
6. Locomotion. 
Lantern of Aristotle used in loco- 
motion ; Gemmill, 88. 
7. Autotomy and Regeneration. 
Autotomy in holothurians ; Pearse, 
188 : of stem in Crinoidea; Kirk, 126. 
Regeneration of arms in Amphio- 
plus; Clark, H. L., 52: of entire 
LincJcia from single arm ; Fisher, 81 : 
of LincJcia and other Ech. ; Korscheldt 
& Heider, 136. 
8. Parasites and Commensals. 
Nematodes parasitic in gut of 
Auricularia ; Oshima, 187 : Gre- 
garines in Chirodota ; Sokolow, 213. 
Echinophyces mirabilis parasitic in 
Eurocidaris perrieri ; Koehler, 132 : 
Crab in apex of Toxocidaris ; Thi#ry, 
229. 
Dendrogaster in Poraniopsis ; Fisher, 
81. 
Raumparasitismus einer Ophiure in 
einer Schnecke ; Simroth, 211. 
Myzostomids in stems of fossil 
Crinoids ; Jahn, 120 : Loxosomella 
on Hathrometra prolixa ; Mortensen, 
184. , . 
9. Protection of young. 
In Ilenricia; Fisher, 81. 
Marsupial pouches in Abatus and 
Pseudabatus ; Koehler, 131. 
10. Sexual Dimorphism. 
Differences in apical system in 
Acrosastcr ; Lambert, 141. 
Proportionate numbers of sexes in 
Crinoids; Kirk, 126. 
11. Relation to other animals. 
Economic aspect of Sea Urchins ; 
Bather, 10 : of Starfish; Bather, 11. 
Trepang in Philippine Islands ; Seale, 
206. 
b 5 — 2 
