SUB-CLASS II 



AI;A< iixihA 



The order Chelonethi (False Scorpions) is distinguish^! fY'-m tin- . lm' by having a 

 segmented alidimu-ii. The recent genus Chelifer (Fig. 1426) occure fossil in ain 



The order Anthracomarti, as (l-liii-l l.y K.u- h ,,n<i S. ii'M.-r, is restricted to tn*e 

 Carboniferous. The cephalothorax and al: li.-t im-t, and tin- lattrr is com- 



posed of four to nine segments. Tin- oephalothorai i'iv<|iiriitly presents wedge-- 

 segments In-low. Examples: Arthrolycoaa, Hargcr Fiu r . M-7 : /'-/' '/(' //.';. / <///irynu*, 



FIG. 1420. 



Chelifer Hemprichii, Merge. 

 Oligocene ; Baltic amber. 

 Copy, 9/i. 



Fio. 1427. 



Arthrolycosa antiqua, Harger. Coal. Measures ; 

 Mazon Creek, Illinois. /i (aft r Beecher). 



1428. 



Architarbus rotund- 

 atus, Scudd. Coal Mea- 

 sures ; Mazon Creek, 

 111. Under surface, /i- 



Architarbus, Scudder (Fig. 1428); Anthracomartus, Karsch (Fig. 1429); Kreischeria, 

 Geinitz ; Eophrynus (Fig. 1430), Brachypyge, Woodw. ; Phalangiotarbus, Haase, etc. 



The order Pedipalpi has the first pair of legs exceptionally long ; cephalothorax 

 and abdomen distinct ; and some forms with a setigerous postabdomen. Certain 



Fid. 1429. 



Anthracomartus Vodkdianus, 

 Karsch. Carbon Coal Mea- 

 sures ; Neurode, Silesia. Dor- 

 sal surface, 1/1 (after Karsch). 



Fia. 1430. 



Eophrynus Prestwichii, Bucklaiul 

 sp. Coal Measures; Coalbrookdale, 

 England. Dorsal surface, 1/1 (after 

 Woodward). 



Fio. 1431. 



Gtralinura Bohemica, KoiU tp. 

 Coal Measures; Hakonitz, 

 Bohemia. Vi (after Kulta). 



fragments from the Devonian of New Brunswick are referred here by Matthew. 

 Geralinum, Scudder (Fig. 1431), is Carboniferous; Stenarthron, Haase, occurs in the 

 Lithographic Slates of Bavaria. Phrynus, Latr., is Tertiary and Recent 



In the order Scorpiones the posterior end of the body consists of a preabdomen with 

 seven segments, and a long slender postabdomen of six segments, the last of which 

 forms a hollow poisonous sting. Scorpions are among the oldest of Arachnids. 

 Palaeophonus, Thorell (Fig. 1432), and Proscorpius, Whitf., are known from the 

 Silurian. Eoscorpius, M. and W. (Fig. 1433), Centromachus, Thorell, and Cycloph- 

 thalamus, Corda, are Carboniferous genera. A species of Tityti*, Koch, is found in 

 amber. 



