THELYPHONIDEA, SCORPIONIDEA. 
Arachn. 43 
THELYPHONIDEA. 
PHRYNElDiE. 
F. KarsciI, Arch. f. Nat. xlv., pp. 189-197, proposes four divisions of 
the Phrijneidce : — 
i. The six true legs formed alike, excepting the fourth pair, which 
want the posterior tibial joint. Gen. Phrynicus, Karsch ; type, 
P. raniformis^ Linn. {Phalangium limatum^ Pall.). 
ii. Legs of fourth pair with one such joint. Gen. Damon, 0. L. 
Koch ; type, D. medius, Herbst (Phrynus variegatus, Perty). 
iii. Legs of fourth pair with two such joints, of which the anterior is 
the shorter. Gen. Tarantula, Fabr. Type, T. pumilio, O. L. 
Koch {Phal. reniforme, Pall.). 
iv. Legs of fourth pair with three such joints. Gen. Charon, Karsch. 
Type, C. grayi, Gen. {Plirynus medius, Yan der Hoeven). 
The larger number of known species belong to Phrynicus. 
A. G. Butler, Ann. N. II. (5) iv. pp. 313-316, considers that the 
number of the tibial joints of the fourth pair of legs, although of great 
interest in itself, and not before brought prominently forward, is unreli- 
able even for specific distinction, and still more so for characterizing 
genera in this family. 
SCORPIONIDEA. 
H. F. Hutchinson, Nature, xx. p. 653, denies the possibility of a Scor- 
pion’s committing suicide, owing to the position and nature of its sting, 
and the unalterable line of its stroke. 
Allen Thomson, tom. cit. p. 677, reasserts the fact above denied, and 
details experiments in which Scorpions committed suicide when only the 
light of a candle was suddenly brought upon them in the dark. This 
is confirmed by G. Gillman, 1. c. p. 620 (cf. op. cit. xi. pp. 29 & 47). 
Karsch, F. Scorpionologische Beitrage. MT. Munch, ent. Ver. 1879, 
pt. i. pp. 6-22 ; pt. ii. pp. 97-136. 
An important and comprehensive paper on the true Scorpions, with a 
conspectus of the families, subfamilies, and genera. At p. 98 is an ana- 
lytical table of the species of Diplocentrus, Peters. A monograph of the 
lurini, pp. 101-109, with an Jinalytical conspectus of the genera, p, 101, 
and a conspectus of species, pp. 102 et soq. Uroctonus privas, Karsch, 
is described from California, p. 103. Vejovis schuherti, C. L. K. ; genus 
and species discussed, pp. 110 & 111. The following new genera and 
species are described : — 
Androcottus, for A. discrepans, p. 11, Caracas. 
Charmus, p. 101, for C. laneus, p. 104, Ceylon. 
Petrovicus, formed for type, Heterometrus carinatus, Peters, p. 109, 
Herero-land. 
