18 Arachn, 
XI. ARACHNIDA, 
(11) Indian Ocean Islands ( not included above). 
Sokotra and Abd-el-Kuri, Scorpiones , Solifugce, Aranece n. spp., Opiliones 
n. sp. ; Pocock (122). 
Seychelles, Aranece n. sp. ; Simon (153). 
(12) Pacific Islands (not included above). 
Sandwich Is., Aranece n. sp. ; Simon (153). 
Bismarck Archipelago, Hydraehnidce (Acari) n. spp. ; Piersig (109). 
Gilbert Is., Aranece; Rainbow (134). 
B. Geological. 
Palaeontological history of spiders; Pocock (112). 
Carboniferous. Dudley, Anthracosiro n. g. ( Anthracomarti ) n. spp.; 
Pocock (120 & 121): Illinois, Anthracomarti n. spp. and Scorpiones; 
Melander (81). 
IV. SYSTEMATIC INDEX f. 
Arachnida included in new phylum Palceopoda , together with Merostomata 
and THlobita , p. 146; Packard, P. Amer. Phil. Soc. xlii. 
Phylogeny and relationships of Arachnida ; Carpenter, P. Irish Ac. 
xxivB (4), pp. 320-360. 
1. SCORPIONES. 
[In addition to papers quoted below see also Boussac (13), Bruntz (15), 
Dahl (38), Lafforgue (64), t M elander (81), Police (125), Purcell 
(131), Simon (162), Verrill (182).] 
Scorpiones of Caucasus, key to spp. and distribution ; Birula, Annuaire 
Mus. St. Petersb. viii, Nouv. pp. xvii-xix. 
Butheolus,key to spp., p. 565, aristidis , p. 563; Kraepelin, Zool. Jahrb, 
Syst. xviii : B. insularis , p. 180; Pocock, Nat. Hist. Sokotra. 
B. glabrifrons , Muscat, p. 564; Kraepelin, Zool. Jahrb. Syst. xviii, n. sp. 
Buthus occitanus forma zeylensis , p. 558, B. emini , p. 559, B. emini var. 
polystictus, p. 560 ; Kraepelin, t. c. : B. europceus , secretion of 
poison, p. 92; Launoy, Ann. Sci. nat. (8) xviii: B. socotrensis, p. 178; 
Pocock, Nat. Hist. Sokotra. 
Euscorpius Carpathians and germanus, p. 678 ; Kulczy^ski, SB. Ak. Wien 
cxii, Abth. i: E. italicus , stomatogastric nervous system, p. 179; 
Police, Arch. zool. ital. i (2): E. italicus, ventral nerve-centres; 
Police, Boll. Soc. Napoli xv, pp. 1-24, pi. i. 
Hemiscorpius socotranus , p. 181 ; Pocock, Nat. Hist. Sokotra. 
Heteronebo, p. 202, granti , p. 202, forbesii , p. 203 ; Pocock, t. c. 
Ileteroscorpion n. g. ( Scorpionidce ) madagascarense , p. x ; Birula, Annuaire 
Mus. St. Petersb. viii, No. 1, Nouvelles, n. sp. 
Nebo hierichonticus pallidimanus n. subsp., S. Arabia, p. 214; Pocock, 
Ann. Nat. Hist. (7) xi. 
f This sign when prefixed to a quotation indicates a fossil form or forms. Where 
the character of a reference is not indicated the words “ description ” or “ descriptive 
notes ” are to be understood. 
