215 
often, to set forth whatsoever fancy as a theory or an 
interpretation, evincing no doubt a lively imagination, 
but neither knowledge nor sound thought. A small 
number only of the theories and interpretations, published 
during the last 20 year have proved and will prove to 
be right, and about more than half of them it may be 
said that they would never have been published, if their 
authors had been examining less superficially and 
studying with more forethought. 
B. Tactile Hairs. 
Such are found, described and drawn by Croneberg 
(op. cit. p. 431—32, Taf. X, fig. 11—12) on the fingers 
of the large chelæ in Chernes Hahntt C. Koch. They 
are found in all genera known to me. They are easily 
discernible as well by their articulation into large pitchers 
as by being very much longer and relatively thinner 
towards the basis (Tab. V, fig. 14, t) than the common sete. 
C. Other Sense-Organs. 
1) Stecker writes (op. cit. p. 514) about a formation 
on the lower side of the Ist joint of the mandibles in 
Ectoceras: »Die Geruchsorgane kammartig aufgereiht 
(T. I, Fig. 7 a), von jenen des Chernes cimicoides Steck. 
(T. II, Fig. 3a, 4) nur durch die äussere gespaltete Form 
der Riechstäbchen verschieden«. P. 520 is stated: »Die 
Zahl der Riechstäbchen wechselt bei den Chthonius- 
artigen Scheerenspinnen zwischen vier und sechs.« 
»Manchmal sind die Riechstäbchen nicht kammartig auf- 
gereicht, sondern bilden (wie bei Chthonius Rayı L. 
Koch (T. Il, Fig. 11) einen kleinen Büschel«. Looking 
at the quoted figures it is evident that the author 
distinguishes himself in bad examination just as much 
