8 TERRERTRTAIi CARBONIFEROUS ARACHNIDA. 



Onlev PEDIPALPI. 



Family Thelyphonid/K. 



Genus Prothelyphonus, Fritseh : P. hohemicus, Kusta ; ? cordai, Fritsch. 

 Genns (Geralinura, Sciidder). 

 Order SCOEPIONES. 



Svh-onler DI0NYCH0P0DE8. 

 Family Anthracoscorpii. 



Genva Cyclophthalmus, Corda : C. senior, Corda. 



Genus Microlabis, Corda.; M sternhenji, Corda. 



Genvs Isobuthus, Fritscli .• I. kralvj^ensis, Thorell and LiudstriJm. 



Gevns Eobuthus, Fritscli : E. ralcovnicensis, Fritsch. 



Genus Feistmantelia, Fritsch : F. ornata, Fritsch. 



Genvs Eoscorpius, Meek and Worthen : F. carhonarins, Meek and 



Worthen ; angliciis, Woodward. 

 Gemis Mazonia, Meek and Worthen: M. wooJiano, Meek and Worthen. 



Ohser cations. — For reasons published in 1910 I consider that Fritsch's genus 

 Fromygale is a synonym of Arifhracomartns ; and since the forms he refers to 

 Hemiphryniis also belong apparently to the same order as Aniltraconiartns^ there is 

 no reason for the retention of his suborder Pleurarane?e. At all events, what- 

 ever these forms may be, they are assuredly not referable to the Araneoe. The 

 other genera assigned to the Aranete seem to belong to that order, so far as can 

 be judged from the author's figures. As for his order Opiliones, it has already 

 been stated that the Poliocherida?, Architarbidfe, Anthracomartida?and EophrynidfB 

 cannot be relegated to it nor to any single group of Arachnida, whether it be 

 named Anthracomarti or Meridogastra. Nerna.^toiiioides may be one of the 

 Opiliones, l)ut DinojiHio, if figured with an approach to accuracy, should find place 

 in the Araneos probably. In recognising that (Jcnijiliri/iiiis and ArcJtitarhns 

 (including I'hnlnugiotarhvs) constitute a natural group, Fritsch improves upon 

 Haase's system. As regards the Anthracomartidie and Eophrynidoe, he practically 

 follows my classification, although he places AiUlirdcosiro in the Anthracomartidoe 

 and by so doing drops the family AnthracosironidfB. 



Unfortunately, the value of this monograph is lessened by the author's lack 

 of acquaintance with the morphology of recent Arachnida, especially on such points 

 as the constancy of the segmentation of the appendages within ordinal limits. His 

 restorations, therefore, cannot he regarded as correct interpretations of the structure 

 of the fossils. 



8. PococK, R. I., Geol. Mag. [5], vol. vii, 1910, pp. 505—512. 



Reasons are given for concluding that the genera referred by Fritsch to the 

 PleuraranefB belong to the Anthracomarti, rr<iviygale being a synonym of 

 Antltraromartus. 



