KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 21. N:0 9. 17 



111. AFFINITIES OF PALJIOPHONUS WlTll OTHER SCORPIONS. 



From the description above given, it may easily be seen that Palseophonus closely 

 agrees with the recent species of the Order of the Scorpions^) not only in the general 

 form of the body, but also in the structure of the mandibles and the palpi, in the number 

 of the joints of the legs, and, indeed, in almost all essential points of its organization ; 

 but that it, nevertheless, shows some interesting deviations as well from the recent 

 scorpions as from the hitherto known representatives of the Order from the Carboni- 

 ferous formation, which latter have been referred to two genera, Cyclophthalmus Cokda^) 

 and Eoscorpius Meek & Worthen^), and by Scudder*) united in one family, Eoscor- 



1) Witli the recent scorpions, a species found in the amber of the oligocene formation entirely agrees. It 

 was desoribed and figured by Menge (Ueber einen Scorpion und zwei Spinnen im Bernstein, in the Schrif- 

 ten d. natiirwissensch. Gesellsch. in Danzig, II, 2, p. 3), and named Tityus eogenus. It undoubtedly be- 

 longs to the sub-family Centimrini, and possibbj to the genus Tityus C. L. KocH. What is said further 

 on about the recent scorpions in general is, therefore, also applicable to 2''ityus (?) eogenus Menge. 



'^) Ueber den in der Steinkohlenformation bei Chomle gefundenen fossilen Scorpion . . . b. Mikroskopische Un- 

 tersuohung, Abbildung und Beschreibung, von A. J. C. Corda, in the Verhandl. d. Gesellschaft des Vater- 

 ländischen Museums in Böhmen in der 13:n allgemeinen Versammlung am 14 April 1835, p. 36 et sequ., 



^ Pl. I, figs. 1 — 14 {Cyclophthalmus senior Corda). — This scorpion was disoovered by Count K. Steen- 

 BEEG, who named it Scorpio senior, but did not describe nor figure it: see 1. c, p. 24. 



Microlahis Sternbergii Corda (Ueber eine fossile Gattung der Aftersoorpione, in the Verhandl. d. Ge- 

 sellsch. d. Vaterl. Mus. in Böhmen in d. 17:n allgem. Versamml. am 3:n April 1839, p. 14 et sequ., 

 Pl. I, figs. 6 — 9) was by Corda regarded as belonging to the Chelonethi (Pseudoscorpioues); but Fritsch 

 has shown that it is a true scorpion, belonging to the genus Cyclophthalmus : see A. Fritsch, Fauna der 

 Steinkohlenformation Böhmens, in Die Arbeiten der Geologischen Abtheilnng der Landesdurchforschung 

 von Böhmen I, (Arohiv d. naturwissensch. Landesdurchforsch. v. Böhmen, II, Abtheil. II), p. 9 et sequ., 

 Pl. I — III (On Plate III, fig. 4, Fritsch has given a new figure of the type-specimen of Corda's C. 

 senior). — Fritsch regards Microlahis Sternbergii Corda as a young specimen of C. senior, and refers 

 to the same species the scorpion found at Kralup in Bohemia, and which he himself describes and figures. 

 In this scorpion, however, the palpi seem to have quite another form than in C. senior Corda, and it is 

 probably a distinct species, which may be named C. Kralupensis. — G. {Microlahis) Sternbergii Corda 

 would seem to differ both from C. senior and C. Kralupensis in the uncommonly long and stout thorn 

 or spine wherewith — aocording to the figure of C. Sternbergii given by Fritsch himself (1. c, Taf. II, 

 fig. 3, x), — one of the last joints of the first pair of its legs is armed. 



^) F. B. Meek & A. H. Worthen, Preliminary notice of a Scorpion, a Eurypterus? and other fossils from 

 the Coal-measures of Illinois and lowa, in the American Journ. of Science und Art, 2 Ser., XL V, pt. 2, 

 p. 25 (The scorpion is here described under the name of Buthus?? carbonarius, though the new genus .Eo- 

 scorpius is proposed for its reception); see also Meek & Worthen, Palaeontology of Illinois, Fossils of 

 the Coal-measures, in Memoirs of the Geological Survey of Illinois and lowa, III, pt. II, p. 560 {Eo- 

 scorpius carbonarius). — Mazonia Woodiana Meek & Worthen, desoribed and figured by these authors 

 p. 563 1. c. (in the Mem. of the Geol. Survey of Illinois and lowa, III) as a Pseudoscorpion, is by Peach 

 considered to belong to the genus Eoscorpius: see B. N. Peach, On some new species of fossil Scorpions 

 from the Carboniferous rocks of Scotland and the English Borders, with a Eeview of the genera Eoscor- 

 pius and Mazonia of Messrs. Meek & Worthen, in the Transact. of the Eoyal Soc. of Edinburgh, XXX, 

 p. 408; Scudder, however, adopts Mazonia as a separate genus of scorpions: see Sam. H. Scudder, A 

 contribution to our knowledge of Paleozoio Arachnida, in the Proceed. of the American Academy of Arts 

 and Sciences, XX (N. S., XII), p. 22. 



*) Scudder, 1., c., p. 21. 



K. Sy. Vet.-Akad. Handl. Bd. SI. N:o 9. 3 



