26 Arachn. 
XI. Aracbnida. 
[1920] 
Tetranychidae p. 285, Mann, Nag- 
purkar, Kulkarni Agric. J. India 15. 
Tetranychus key to spp. p. 49, 
schizopus, crataegi sp. n. Wiltshire p. 51, 
populi p. 52, talisiae sp. n. Kew p. 54, 
telarius p. 55, lintearius p. 56, carpini 
p. 56, tiliarum p. 57, figs., Hirst London 
Proc. Zool. Soc. 1920. — Key to spp. 
649, telarius p. 650 pi. 79 text-fig., 
althaeae p. 652 pi. 79, ludeni, flavus p. 
653 pi. 79, multidigituli, bimaculatus 
p. 654 pis. 79-81, pacificus sp. n. Oregon 
p. 657 pi. 77, 79, sexmaculatus p. 659 
pis. 78-79, weldoni, williamettei p. 660 
pi. 79, oregonensis p. 661 pi. 79, monti- 
colus p. 662 pi. 79 text-figs., McGregor 
Smiths. Inst. Nat. Mus. Proc. 56. 
Hydrachnidae. 
Arevalo 3. — Brehm 12. — Cun- 
nington 24. — Monard 79. — Viets 
122. — Faeroes, Viets 119. — East 
Prussia, figs, of some spp., Vanhoffen 
117. — List of genera and species p. 392, 
Viets Arch, liydrobiol. 11. 
Albia hyxtrix, tenuipalpis p. 337 pi. ix, 
text-figs., Viets Arch, liydrobiol. 11. 
Arrhenurus fonlinalis sp. n. Bremen 
, p. 814, Viets Arch, hydrobiol. 12. — 
A. insecutus p. 372, latifoliatus p. 376, 
spinipetiolatus p. 378, spp. n. Kameruns, 
forficularius p. 370, voeltzkowi p. 374, 
rudiferus p. 381, pis. xii-xiii, text-figs., 
Viets Arch, hydrobiol 11. 
A . Thienemannia gen. n. near Munda- 
mella p. 813, schermeri sp. n. Holstein 
p. 813, Viets Arch, hydrobiol. 12. 
A turns ( Subaturus ) subg. n. p. 335, 
sulcatus sp. n. Kameruns p. 335 pi. ix, 
Viets Arch, hydrobiol. 11. • 
Axonopsalbia curvisetifera p. 341 pi. ix 
text-figs., Viets t.c. 
Axonopsis p. 344 key to spp., 
acuminata p. 346, undulata p. 347, 
rostrata p. 350, gibberosa p. 353, 
koenikei p. 356 spp. n. Kameruns, 
hamata subsp. similis subsp. n. Kame- 
runs p. 349, pis x-xi., Viets t.c. 
Drammenia elongata bremensis var. n. 
Bremen p. 806 , Viets Arch, hydrobiol. 
12 . 
Eylais cordifera sp. n. Konigsberg p. 7 
degenerata var. hispanica p. 19, soari var. 
valenciana p. 23, vars. n. Spain, longi- 
palpis p. 10, text-figs., Viets Bremen 
Abh. natw.Ver. 24. — E. extendens p. 108, 
liamata p. 110, mulleri p. Ill, triarcuata 
p. 112, rimosa p. 113, undulosa p. 114, 
unisinuata p. 115, bicornuta p. 116, 
celtica, discreia p. 117, discreta var. 
stagnalis p. 118, soari p. 119, soari var. 
instabilis p. 120, koenikei p. 121, similis 
p. 122, symmetrica, neglecta p. 123, 
relicta p. 124, gigas p. 125, infundi- 
bulifera p. 126, spinipons, mcridionalis 
p. 127, bisinuosa p. 129, figs, all spp.. 
Soar & Williamson J. Quek. Microsc. 
Cl. Ser. 2 14. — E. hamata (larva) p. 521 
text-figs., Koenike Bremen Abh. 
naturw. Ver. 24. 
Hydrarach la comosa p. 1, bimaculata 
p. 3, paludosa p. 5, text-figs., Viets 
Bremen Abh. natw. Ver. 24. 
Hydryphantes hellichi var. auriculata 
p. 11, ba je 'i var. nonundulata p. 13, 
vars. n. East Prussia, text-figs., Viets 
t.c. 
Hygrobates longipalpis subsp. insulana 
subsp. n. Faeroes p. 78 pi. i, Viets Arch, 
hydrobiol. 12. 
Leberlia ( Pilolebertia ) porosa p. 70, 
(Mixolebertia) a lata sp. n. Faeroes p. 74, 
pi. i, Viets t.c. — ( Hexalebertia),holsatica t 
crenophila p. 807, spp. n. Holstein, 
crenophila var. lobata var. n. Holstein 
p. 808, complexa var. producla var. n. 
Holstein p. 809, var. conjuncta var. n. 
Sweden, angulata var. cornuta var. n. 
Sweden, ( Pseudoleb .) anellata var. tigil- 
lifera var. n. Bremen p. 810, celtica var. 
procera var. n. Bremen, ( Neoleb .) 
minutipalpis sp. n. Bremen p. 811, 
Viets t.c. — ( Pilobertia ) exuta p. 378, 
luminosa p. 386, circularis p. 388, 
rivalis sp. n. Hanover p. 392, seclusa 
p. 396, pachydermis p. 404, insignis 
p. 407, (N eolebprtia) cognata p. 409, 
sevocata sp. n. Switzerland p. 416, inversa 
sp. n. Lippe p. 562, tauinsignita p. 556, 
lacustris p. 574, rufipe s p. 578, impennata 
sp. n. Switzerland p. 588, reticulata 
sp. n. Bohme p. 590, zachariasi sp. n. 
Bdhme p. 595, westjalica sp. n. West- 
phalia p. 598, pavesii p. 6Q3, subtilis 
p. 607, lacertosa p. 611, ( Mixolebertia ) 
halberti p. 613, densa p. 618, ( Pseudo - 
lebertia) maculosa p. 626, zschokkei 
p. 632, oculata sp. n. Switzerland p. 636, 
inalpina sp. n. Switzerland p. 641, 
granulosa p. 644, glabra p. 648, anellata 
p. 650, salebrosa p. 656, inusitata sp. n. 
p. 659, (Hexalebertia) plicata p. 663, 
fallens sp. n. Westphalia p. 668, costata 
