2 Echin. 
XIV. ECHINODERMA. 
[1904] 
V Page 
iii Secondary Sexual Characters : — 
a. Differences of Form or Structure . . 34 
b. Differences of colour ..... 34 
c. Protection of young 34 
C. Physiology : — 
i General 34 
ii Circulation 35 
iii Respiration 35 
iv Alimentation and Digestion .... 35 
V Excretion and its Products .... 35 
vi Sensation ........ 35 
vii Miscellanea and Experimental .... 35 
D. Bionomics : — 
i General Accounts ..... (Vacant) 
ii Special habits 35 
iii Habitat (in Classes a — h, as under IV) . . 35 
iv Feeding (ditto) (ditto) . . 35 
V Defence and Protection .... (Vacant) 
vi Locomotion 35 
vii Autotomy and Regeneration (in Classes a — h) . 36 
viii Parasites and Commensals (ditto) . 36 
ix Echinoderms as Food 36 
X Echinoderms in Geological Asj^ect ... 36 
E. Miscellaneous : — 
i Research and Instruction (a. Preservation, b. 
Methods of research, c. Museum exhibits 
and Collections. d. Instruction) . . 37 
ii Economics . 37 
iii Bibliography 37 
iv Historical, Popular notions, &c. . . . 37 
F. Auxology : — 
i General principles (Vacant) 
ii General accounts 37 
iii Formation of Gonads 37 
iv Oviposition, Fertilisation, Segmentation . . 37 
V Larval stages ....... 38 
vi Organogeny, 1-12, as under II, b, i . . . 38 
vii Post- larval growth-stages 38 
viii Developmentcxl mechanics and Experimental 
Embryology 38 
(Under each of tlie above a — li indicate Classes as 
under IV.) 
III. — Distribution. 
A. Geographical : — 
i General 39 
ii Atlantic Ocean and adjacent Seas ... 40 
iii Indian Ocean and adjacent Seas ... 40 
iv Pacific Ocean and adjacent Seas . . . 41 
V Arctic Ocean and adjacent Seas ... 41 
vi Antarctic Ocean and adjacent Seas ... 42 
