236 ENTOMOLOGISK TIDSKRIFT 1897. 
THORELL agreed in this conception though he suggested naming 
the order Palpigradi!”, a name which, like several other group: 
names introduced by THORELL, bears witness of the particular gift 
of this author for hitting on the most distinctive characteristic 
of the group in question. Yet we cannot share what seems to 
be THORELL’S opinion when he says (I. c.): ».... quum Aoenenza 
vix nisi abdomine filo caudali articulato prædito cum 7helypho- 
noidis conveniat, præterea ab iis, ut a reliquis Pedipalpis, notis 
gravissimis abhorrens». For though we also think that Avenenza 
forms an order by itself, we must emphasize that the Pedzpalpz 
(and among them especially the Zartarzdes) are the only order 
with which the Pa/pigradi show any relatively close kinship. In 
so far then we agree with Grassi where he says (p. 164) »...I 
Tartaridi a tutta prima sono molte simili ai nostri anımali...» 
But, to tell the truth, we are at a loss to understand Grassı's 
suggestion 7? 
result that the Zartarzdes ought to be classed with the Palpigradi. 
that a closer examination may possibly lead to the 
In now attempting to point out the systematic peculiarities 
of the Palpzgradz, we think we are right in asserting that —- 
with the sole exception of the Pedipalpi — they are far re- 
moved from all other orders. For while it is easy enough to 
show differences between Palpigradi and Scorpiones, Chelonetht, 
Solifuge, Opiliones, Araneæ and Acari, we confess that we should 
find great difficulty in detecting resemblances to these orders, ex- 
cept in the fact that they are all Arachnids*!. Though indeed the 
order Pedipalpi is poor in species, its two sub-orders?”” Am- 
19 
THORELL, T.: Pedipalpi e Scorpioni dell’ Arcipelago Malese (Ann. 
d. Mus. civ. d. stor. nat. di Genova. 2 Ser. vol. VI. Genova 1888, p. 327 
428). — p. 358. 
?° p. 165, note continued from p. 164. 
71 In 1848 Kırrary (Bull. d. 1. Soc. Imp. d. Naturalistes d. Moscou 
T.XXI, 2, p. 307—371) had already shown that in Solifuge the cephalothorax 
consists of a head and two thoracic segments, that this feature does not show a 
closer affinity between Solifuge and Palpigradi will presumably become evi- 
dent from the above ‘announced essay by one of us, which will appear, in 
French, in »Oversigt over det Kgl. Danske Videnskabernes Selskabs Forhand- 
linger». 
?? Comp.: THORELL, T.: Arachnida Arthrogastri Birmani (Ann. d. Mus. 
civ. d. stor, nat. di Genova, 2. Ser. vol. VII, 1889), p. 526. 
14 
