[1921] 
X. Arachnida. 
Arachn . 19 
Protoribates ( Schlerorib ?) biunguis 
sp. n. Samarang p. 150, Berlese t.c. 
Sandenia gen. n. ioxGalumna georgiae, 
georgiae p. 75 text-figs., Oudemans 
Arch. Natg. Berlin 83 A Hft. 4. 
Vaghia gen. n. for Oribates stupendus, 
stupendus p. 79, Oudemans t.c. 
Xenillus speciosus p. 31 pi. i, subtri- 
gonus p. 34, paolii p. 38, blattarum 
p. 41, text-figs., Oudemans 81. 
Zetorchestes saltator p. 60 text-figs., 
Oudemans 81. 
Gamasidae. 
Alloparasitus subg. n. of Psuedo- 
parasitus q.v. 
Ameroseius hypogaeus sp. n. Sardinia 
p. 170, Berlese Redia 14. 
Cillibana ( Cillibano ) translucida sp. 
n. Sumatra p. 44 text-figs., Vitzthum 
Arch. Natg. Berlin 87 A Hft. 4. 
Cillibano applicata sp. n. Sumbava 
p. 26, malayica sp. n. Java p. 29, text- 
figs., Vitzthum Arch. Natg. Berlin 
86 A Hft. 10. 
Coleolaelaps egregius p. 155, amazon , 
coi'iacens p. 156 spp. n. S. America, 
Berlese Redia 14. 
Copriphis paolianus Somalia Italiana 
p. 171, stephaninianus Abyssinia p. 172, 
C. ( Peletiphis ) undulaius Germany, 
analis E. Africa p. 172 spp. n., Berlese 
t.c. 
Cosmolaelaps vacuus var. hasliger 
var. n. Italy, simplex sp. n. S. America 
p. 157, Berlese t.c. 
Dcrmanyssus quinlus sp. n. Mace- 
donia p. 7 text-figs., Vitzthum Arch. 
Natg. Berlin 86 A Hft. 10. 
Dinychopsis pyriformis sp. n. Italy 
p. 190, Berlese Redia 14. 
Discopoma kleinei Madagascar p. 50, 
regia Bolivia p. 53, spp. n. text-figs., 
Vitzthum Arch. Natg. Berlin 87 A Hft. 
4. 
Dolaea p. 4, perkinsi p. 5, alfkeni p. 8, 
braunsi p. 10, maxima p. 13, jacobsoni 
p. 17, hirtissima p. 18, amaniensis sp. 
n. E. Africa p. 18, text-figs, all spp., 
Vitzthum Arch. Natg. Berlin 85 A 
Hft. 5. 
Eviphis minimus sp. n. Samarang 
p. 173, Berlese Redia 14. 
Gamasellus quadripilus Italy p. 159, 
G. ( Digamasellus ) quadrisetus Italy, 
gracilis Italy p. 159, debilipes Columbia 
(N.A.) p. 160, capensis , innumerus, 
C. of Good Hope, reticulatus Italy 
p. 161, quadricinus Florida, rhoda- 
caroides Italy p. 162, simplex Italy, 
validulus Somalia Italiana p. 163, G. 
( Protolaelaps ) rectus Columbia (N.A.) 
p. 163 spp. n., Berlese Redia 14. — 
G. vulgaris p. 9, aeronauta p. 12, octo- 
clavalus p. 14, text-fig3., spp. n. Weimar, 
Vitzthum Arch. Natg. Berlin 84 A 
Hft. 6. — G. viator sp. n. Hamburg p. 7 
text-fig., Vitzthum Arch. Natg. Berlin 
87 A Hft. 4. 
Gamasiphis ( Gamasiphis ) sextus sp. n. 
Weimar p. 10 text-fig., Vitzthum Arch. 
Natg. Berlin 87 A Hft. 4. 
Haemogamasus horridus var. arvi- 
colarum var. n. Sardinia p. 166, Berlese 
R edia 14. 
Holostapella moderata sp. n. Java p. 
188, Berlese t.c. 
Hypoaspis ( Pneumolaclaps ) subg. n. 
for Ipliis bombicolens p. 151, H . trispi- 
nosus Italy, fortis Jaba (? Java) p. 151, 
elimatus Italy p. 152, H. ( Haemolaelaps ) 
spinulosus Mexico p. 152, subterraneus 
Italy p. 153, II. ( Slratiolaelaps ) cor- 
pulentus Italy p. 153, hirlipes Samarang 
p. 154, II. ( Gymnolaelaps ) spinosus 
Italy p. 154 spp. n., Berlese t.c. — 
H. amaniensis sp. n. E. Africa p. 22 
text-figs., Vitzthum Arch. Natg. Berlin 
85 A Hft. 5. 
Iphidozercon orienlalis sp. n. Jaba 
(? Java) p. 170, Berlese Redia 14. 
Laelapis regalis Columbia (N.A.) p. 
157, secedens Somalia Italiana, aviator 
Italy p. 158 spp. n., Berlese Redia 
14. 
Laelaps ( Hypoaspis ) spirostrepti p. 
14, indicus sp. n. India p. 16, text-figs., 
Vitzthum Arch. Natg. Berlin 86 A Hft. 
10. 
Lasioseius ( Lasioseius ) pulvisculus 
sp. n. Italy p. 171, Berlese Redia 14. 
Liodinychus viduus New Forest p. 
18, similis West Allendale, winterii 
Shipley, Yorks, biquadratus Durham, 
spp. n. p. 19, Hull Vasculum 7, 
