10 Arachn. 
X. Arachnida. 
[1922] 
Larval forms : — Acarina ; Thou, 238 ; 
Proctophyllodes (Acar.) ; Vitzthum, 
250 ; Tyroglyphus mycophagus ; 
Schulze, 207 ; Nymphal stages, Orni- 
thodorus ; Cunliffe, 62 ; Metamor- 
phosis, Acari of Birds ; Oudemans, 
169 ; Tarsonemidae ; Ewing, 72. 
Growtli stages, Scorpions ; Paw- 
i.owsky, 175. 
ETHOLOGY. 
General. — Habits : — Indian spiders, 
Gravely, 89 ; Feeding, Tarsonemidae ; 
Ewing, 72 ; Feeding, breeding, lon- 
gevity, Ornitliodorus ; Cunliffe, 62 ; 
Feeding irregularity, Araneae ; Bur- 
kill, 37 ; Spinning, Araneae ; Buczk6, 
35; Nesting, Nephilamaculata,H ings- 
ton, 103 ; Trap-door spiders ; Main, 
137 ; Nesting, breeding etc. N. Zealand 
spiders ; Myers, 159 ; Mating, Aran- 
eida ; Roberts, 199; Ejection of 
blood by coxal orifice, Argasidae ; 
Remy, 190; Dessication, Revivifica- 
tion ; Baumann, 10 ; Burrowing, 
Sarcoptes ; Gittisz, 92; Scorpion, 
suicide ; Brander, 22 ; behaviour in 
water, Frere, 79 ; Movement, defence, 
sand- burrowing, Scorpions ; Paw- 
lowsky, 175; Fight between Spider 
and Mosquito ; Mullenberger, 156 ; 
Linyphia killing lizard ; Szilady, 232. 
Habitats. — Tarsonemidae, Trombi- 
diidae ; Vitzthum, 251 ; N. Zealand 
spiders ; Myers, 159 ; Freshwater, 
Hydracarina ; Viets, 243, 246 ; Caver- 
nicolous : — Araneae, Berland, 13 ; 
Simon & Fage, 218; In arable soil; 
Morris, 153 ; Moss-dwellers, Tardi- 
grada; Rahm, 186; In Spring, 
Thermal and Salt waters, N. Africa ; 
Seurat, 214 ; Fauna of isolated 
islands ; Bristowe, 23 ; Influence of 
nature of physiography on distribu- 
tion of human parasites ; Russo, 
202. 
Migrations. — Spiders ; Oudemans, 
166 ; Ships carrying spiders as “ stow- 
aways ” ; G[illesi*ie], 87. 
Tropisms. — Tardigrada ; Rahm, 186. 
Parasitism and Symbiosis. — Degenera- 
tion and adaptation, Tarsonemidae ; 
Ewing, 72. 
List of hosts, Linguatulidae p. 421, 
Sambon, 203. 
Sarcopterinus ; Corti, 60. 
On man, Porocephalus ; Arnaud & 
Joyeux, 3 ; Linguatulidae ; Cantlie 
& CastellaNi, 39; Sarcoptes ; GRtisz, 
92 ; S. scabei var. equi ; Macdougall, 
130; mites; Pouillade, 182 ; Acari; 
Russo, 202 ; In human urine, Tarsone- 
mus ; Mackenzie, 136 ; On birds, larval 
forms Acari ; Clelan’d, 58 ; Oude- 
mans, 169 ; Proctophyllodes spp. ; 
Vitzthum, 250 ; mites ; Wickware, 
264 ; On Huia, Ticks ; Mason, 147 ; 
On Monitors, new Linguatulid ; Noc 
& Giglioli, 164; On insects, Tyro- 
glyphus mycophagus ; Schulze, 207 ; 
On Mosquitoes, mites ; Boyd, 19 ; 
On bees, mites ; Bullamore, 36 ; 
On Coleoptera, Hydrachnid larvae, 
Pearce, 176; In branchial chamber 
of lobster, acarid ; Haswell, 97 ; 
On plants, gall- mites ; Houard, 108 ; 
On Tamarix, Eriophyid ; D9BSKI, 67 ; 
On vines,' Araneae, Acari ; Ferrant, 
78 ; On maples, gall-mites ; Nalepa, 
162; In Fungus cultures. Mites; 
Jewson & Tattersfield, 116. 
Commensals : — of ants, Acari ; Hull, 
112; Stelfox, 226. 
Miscellaneous : — Venom, spiders ; 
Houssay & Negrete, 109; Latrodectes 
mactans ; Watson 259 ; Scorpions ; 
Mouat- Biggs, 155; Dessication and 
revival, Tardigrada ; Baumann, 10 ; 
Influence of temperature and moisture 
on growth and reproduction, Ornitho- 
dorus ; Cunliffe, 62 ; Effect of tem- 
perature, Tardigrada ; Rahm, 185. 
VARIATION AND AETIOLOGY. 
Teratology. — Hyalomma ; Senevet, 
213. 
Dimorphism. — Mites ; Ewing, 74. 
Mimicry etc. — Spiders and Bees ; 
Varga, 240; Colour protection, Scor- 
pions, Galeodes ; Pawlowsky, 175 ; 
Warning colouration, Mullerian mimicry 
Water- mites ; Elton, 75. 
Phylogeny etc. — Scorpions ; Dahl, 
63 ; Arachnida, Araneae ; Petrunk- 
evitch, 178; Acarina; Thor, 238; 
Liphistius, a primitive spider ; Savory, 
205 ; Affinities : — Prostigmata, Gall 
mites, Ewing, 71 ; Linguatulidae ; 
Sambon, 203. 
Homologies. — Arachnid optie ganglia ; 
Hanstrom, 94, 95. 
