45 Arachn. 
Systematic. — Hydrachnidae. 
3031 
Hydrachnidae. 
Hydrachniden, Einige allgeraein- 
biologiscbe Bemerkungen iiber, Walter 
I ntern. Rev. Hydrobiol. 1 pp. 351- 
358. 
Hydrachnidae, larvae parasitic on 
Cxdicidae, Bruyant Paris C.R. Soc. biol. 
65 pp. 706-707. 
Hydraclinidae, RinAGA re-describes 
S. American species described by him 
in 1902, Portici, Ann. Scuola sup. agr. 
ser. 2 5 pp. 1-28, 2 pis. 
Acercus p'stilUfer sp. n. Deutschland, 
Koenike Bremen Abli. natvv. Ver. 19 
p. 246. 
Ary’henurue, all the species of the 
United States described and figured ; 
rotundus p. 89 ff. 1-4, 128, oralis p. 90 
ff. 5-7, crenellatus p. 90 ff. 11-13, 
hicaudatus p. 91 ff. 8-10, acutus p. 
92 ff. 14-16, scutulatns p. 93 ff. 17-19, 
infundibularis p. 93 ff. 20-22, lyriger 
p. 94 ff. 26-28, laticaudatus p. 95 
ff. 23-25, montifer p. 96 ff. 29-31, 
mamillanusp.dS ff. 32-35, solijerp. 99 
ff. 36-38, scutuliformis p. 100 ff. 39-42, 
capillatvs p. 101 ff. 43-45, expansns 
p. 107 ff. 53-55, promimdns p. 108 ff. 
56-60, rectangidaris p. 110 ff. 61-63, 
longicaudatus p. Ill ff. 65-67, cornicu- 
laris p. 112 ff. 68-70, trifoliatus p. 115 
ff. planus p. 115 ff. 75-76, angxis- 
tocaudatus p. 116 ff. 77-79, dentipetio- 
latus p. 117 ff. 81-83, reflexus p. 117 ff. 
84-86, u'olcotti p. 118 ff*. 87-89, pistil- 
latus p. 119 ff. 90-92, compactilis p. 120 
ff. 93-95, falcicornis p. 121 ff. 96-98, 
Idticornis p. 122 ff. .99-101, ampins p. 
122 ff. 102-105, magnicaudatus p. 123, 
ff. 106-108, superior p. 124 ff. 109-111, 
jlabellipes p. 125 ff. 122-124, americanus 
p. 126 ff. 112-117, with var. n. major 
p. 128 ff. 118-121, fissicornis p. 130 ff. 
125-127, spp. n. United States, 
Marshall Tr. Ainer. Microsc. Soc. 28 pis. 
vii-xxii. — A. lisii sp. n. Provincia di 
Bergamo, Maglio Milano, Rend. 1st. 
lomb. 41 pp. 191-194, 1 fig. — A. non- 
forcipatus Iftrval stage of A. forci- 
patus, George .Naturalist 1908 p. 
41. — A. pugionifer p. 217, imitator p. 
221, Deutschland, spp. n., Koenike 
B remen Abb. natw. Ver. 19. — A.falciger 
p. 267, fissxxs p. 269, Deutschland, spp. 
n., Viets T.c. 
Atax gracilipalpls sp. n. Germany, 
Viets Zool. Anz. 33 p. 50. 
Atractides am, plexus Deutsch^nd p. 
231, connexus Europa p. 232, maglioi 
Deutschland p, 233, spp. n., Koenike 
Bremen, Abb. natw. Ver. 19 . 
Delmea g. n. near Teutonia, crassa 
sp. n. Germany, Koenike Zool. Anz. 32 
p. 704. 
Diplodontus torrenlieolus sp. n. 
Naples, Walter Arch. Hydrobiol. 4 p. E 
Eulais aurita sp. n. Deutscblanrl, 
Koenike Bremen, Abb. natw. Ver. 19 p. 
254. — E. tihetana sp. n. Tibetj Daday 
Rec. Ind. Mus. 2 pp. 339-340. 
Hydrachna characters p. 272, key to 
British species p. 275, georgei p. 279, 
halherti p. 280, williamsoni p. 280, 
-fuscata p. 281, spp. n. England, Soar 
J. Quek. Microsc. Cl. 10 . — H. perpera 
p. 252, himaculata p. 253, Deutschland 
spp. n., Koenike Bremen Abh. natw. 
Ver. 19 . 
Ihjdryphantes ahxiormis sp. n. Deut- 
schland, Koenike T.c. p. 248. 
Hygrohates tituhans p. 237, porrectus 
p. 239, spp. n. Deutschland, Koenike 
T.c. 
Lehertia (Hexalehertia) giardinai, 
(Mixolehertia) sig-thori spp. n. Tren- 
tino, Maglio Milano, Rend. 1st. lomb. 
41 pp. 672-675. — L. solida p. 342, 
salehrosa, costata, p. 343, exuta p. 344, 
luminosa p. 346, pachydermis p. 347, 
Deutschland spp. n., Koenike Bremen 
Abh. natw. Ver. 19 . — L. circularis sp. n, 
Germany, Viets Zool. Anz. 33 p. 52: 
Ljania walteri for L. hipapillata 
Walt., thori nom. n. for hipapillata Thor, 
described p. 702, maeilenta sp. n. 
Switzerland p. 703, hipapillata described 
p. 702, Koenike T.c. 
Megapus crassipalpis nom. n. fur 
Atractides oralis Koen. 1895, Koenike 
Bremen Abh. natw. Ver. 19 p. 246. 
Neumania imitata sp. n. Germany, 
itoENiKE Zool. Anz. 32 p. 706. 
Oxus angustipositus sp. n. Germany, 
Viets op, cit. 33 p. 51. 
Panisus hazettae sp. n. Italy, Monti 
Milano, Rend. 1st. lomb. 41 pp. 637-640, 
1 tav. 
Protzia squamosa Europe p. 6, 
rotunda .Naples p. 9, spp. n., Walter 
Arch. Hydrobiol. 4 . 
