22 Arachn . 
XI. ARACHNIDA. 
Nearctic and Neotropical Regions. 
United States: Spiders; Banks (1, 2, 16): Attidce ; Banks (6): 
Epeiridce\ McCook: Opiliones ; Banks (9, 14, 15) : Acari; Banks (17): 
Oribatiduz ; Banks (18) ; Hydrachnidce ; Koenike (1). 
Canada : Spiders ; Emeuton. 
Michigan : Spiders ; Baker. — Missouri : Spiders ; Banks (4). — Now 
York : Opiliones ; Banks (7). — Washington : Opiliones ; Banks (5). — 
Colorado: Lycosidce ; Banks (8). — Long I.: Spiders; Banks (12). — 
Sphagnum Swamp : Acari ; Banks (13). 
California : Opiliones ; Banks (11). 
Lower California : Spiders ; Simon (7, 8). 
Central America : Spiders ; O. P. Cambridge (5). 
West Indies: Pedipalpi ; Pocock (11). — Trinidad: Attidce ; Peckham 
(3). — St. Vincent: Spiders; Simon (1). — Jamaica : Ticks; Townsend. 
Demerara : Spiders ; Pocock (8). 
Brazil : Spiders ; GOldi. 
Argentine Republic: Opiliones ; Sorensen : Arachnida ; Thorell (1). 
Tierra del Fuego ; Spiders; Simon (14). 
S. Georgia : Michael (1). 
III. SYSTEMATIC. 
SCORPIONES. 
For a revision of the subfamilies, genera, and species of Scorpionidce and 
Bothriuridce, see Kraepelin, Jahresber. Hamburg. Anst. xi. 
Bothriurus burmeisteri , Argentine, p. 227, Kraepelin, t. c. n. sp. 
Broteas panamensis , Panama, p. 382, Tiiorell, Bull. Soc. ent. Ital. xxv, 
n. sp. 
Buthus acute-car inatus , Sim., dimidiatus , Sim., discussed ; Pocock, 
J. Linn. Soc. xxv, pp. 292 & 293 : for the former, see also Thorell, 
Bull. Soc. ent. Ital. 1894, p. 364. 
B. anthracinus , Hadramaut, p. 294, pi. ix, fig. 1 ,jayalcari, Muscat, p. 300, 
pi. ix, fig. 2, alticola , Chitral, p. 302, pi. ix, fig. 2, Pocock, J. Linn. 
Soc. xxv, n. spp. 
Centromac1ius i n. g. of Bothriuridce, pococleii, Valparaiso, p.238; Krae- 
pelin, Jahresber. Hamburg. Anst. xi, n. sp. 
Chcerilus margaritatus, India, p. 79, gemmi/er , Silhet, p. 81, insignis, Ladak, 
p. 82, ceylonensis , Trincomalee, p. 83, Pocock, Ann. Nat. Hist. (6) 
xiii, n. spp. 
Hadogenes , n. g. for Scorpio trichiurus , Gerv., p. 113; Kraepelin, 
Jahresber. Hamburg. Anst. xi. 
Nanobutkus, n. g. of Buthidce ) andersoni } Duroor, p. 314, Pocock, J.Linn. 
Soc. xxv, n. sp. 
Oncocentrus , n. g. for Oentrurus phceodactylu8 t Wood ; Thorell, Bull. 
Soc- ent. Ital. xxv, p. 374. 
