22 Arad in. 
ARACHNIDA. 
H. Lucas, Bull. Soc. Ent. Fr. (6) ii. p. lxxvii., in a note on Buthus 
quinque-striatus, Hempr. & Ehr., remarks that the black colour of the 
penultimate joint of the tail and the sting is not an invariable cha- 
racter. In a considerable proportion of individuals it is brown or 
brownish only, the depth of hue decreasing in proportion to the size 
and age of the individual. 
The same author (op. cit. i. p. cxlix.) relates that an example of An- 
droctonus australis , Linn. (A.funestis, Hempr. & Ehr.), a native of South 
Algeria, while in confinement, buried itself completely in sand, and 
remained so for days together. 
P. Pavesi, in a paper noted as not seen by the Recorder, Zool. Rec. 
xviii. Arachn. p. 22, “ Toradelfia di uno Scorpione,” Rend. 1st. Lomb. (2) 
xiv. fasc. viii. & ix., with woodcut figure, describes a remarkable mon- 
strosity in an example of Euscorpius germanicus, ScluilF., in which the 
body was subdivided near the hinder part, and thence prolonged into two 
perfect tails and stings. 
Euscorpius Jlavicaudis, Do Geer, the Coliseum, Romo, and E. carpathicus , 
Linn., Vulture, Rionero Bosco di Monticchio, Dirupata di Morano, Salita 
del Pollino, Castrovillare : E. Simon, Bull. Ent. Ital. xiv. p. 47. 
Isometrus burdoi , sp. u., E. Simon, CR. Ent. Belg. xxvi. p. Iviii ., on the 
route from Zanzibar to the Great Lakes. I. weberi , sp. n., F. Karsch, 
B. E. Z. xxvi. p. 184, Isle of Salanga, Straits of Malacca. 
Titytus tricolor , sp. n., E. Simon, l. c. p. lix., East Africa. 
Buthus liosoma , Hempr. & Ehr., Aden, B. dimidiatus, p. 244, fig. 17, 
B. acute- car inatus, p. 245, fig. 18, Tes, B. beccarii , p. 246, fig. 19, Moka, 
spp. nn., E. Simon, Ann. Mus. Genov, xviii. pi. viii. 
Butheolus , g. n., near Isometrus and Phassus, for B. thalassinus , Aden, 
p. 248, fig. 20 ; B. aristidis , Nubia, p. 258, fig. 23, spp. nn. : E. Simon, l. c. 
pi. viii., Southern Yemen. 
Nebo Jlavipes , sp. n., id. 1. c. p. 249, Tes. 
F. Karscii gives a list of five species of fossil Scorpiones found in the 
coal formation — two from Illinois, one from England, and two from 
Bohemia ; Z. geol. Ges. 1882, pp. 656-561. 
PSEUDOSCORPIONES. 
Daday, E. von. Uber den circulations apparat der Pseudoscorpione. 
Term, fiizetek, iv. pp. 331-339, pi. xi. [Noted Zool. Rec. xviii. 
Arachn. p. 22, as not seen by Recorder.] 
This is a preliminary notice of the author’s researches into the blood 
and organs of circulation of Pseudoscorpions. The species chiefly 
examined was Chernes hahni, C. Koch. A comparison with some species 
of Chelifer and Obisium leads to the conclusion that it may be taken as 
typical of all the families of this sub-order. The parts chiefly referred 
