9 
PAGE 
Development = 2215) — 
General 
... 36 
Oogenesis and Ovum 
... 36 
Spermatogenesis and Spermatozoon 
... 36 
Embryology 
... 36 
Ethology = 2219 : — 
General 
... 36 
Movements, Locomotion ... 
Feeding Habits 
... 37 
... 37 
Breeding Habits 
... 37 
Colouration... 
... 37 
Habitat 
... 37 
Boring Habits 
... 37 
Acclimatisation, etc. 
... 37 
Hibernation and ^Estivation ... 
... 37 
Parasitism, Commensalism, Parasites, etc. 
... 37 
Enemies, etc. 
Economics ... 
... 37 
... 38 
Variation and ^Etiology = 2223 : — 
General Treatises 
... 38 
Teratology, Phylogeny and Relationship 
... 38 
Distribution = 2227 : — 
General 
... 39 
(a) Recent: — 
(a) Marine : — 
Arctic Ocean ... 
... 
39 
North Atlantic Ocean, Caribbean Sea 
Gulf of Mexico 
and 
39 
Mediterranean Sea, Black Sea 
• • • 
40 
South Atlantic Ocean... 
• • • 
40 
Indian Ocean, Red Sea 
• • • 
40 
Malaysia 
• i • 
40 
Pacific Ocean ... 
• . • 
41 
Southern Ocean 
• . • 
42 
Antarctic Ocean 
... 
42 
(/3) Non-Marine : — 
Sweden and Denmark — . 2227 da ... 
• • • 
42 
Russia = 2227 db ... 
• • • 
42 
Southern Russia = 2227 dbb 
• • • 
42 
Germany = 2227 do 
42 
Denmark = 2227 da (vacant). 
British Islands = 2227 de 
43 
France = 2227 df ... 
• . • 
43 
Spain — 2227 dg 
... 
43 
