REVISION OF PREVIOUSLY PROPOSED CLASSIFICATIONS. 7 



of the genera of the Carboniferous Arachnida of Illinois, adding to those previously 

 characterised a new genus and species, Hadrachne horribilis, which certainly 

 belongs to the Phalangiotarbi as defined below. 



7. Fritsch, A., Pala?ozoische Arachniden, Prag, 1904, pp. 5 — 80. 



Order ARANE^E. 



Sub-order ARTHRARACHN/E, Haase. 

 Family AetheolycosidjE. 



Genua Arthrolycosa, Harger: A. antiqua, Harger, etc. 

 Genus Protolycosa, Roemer: P. anthracophila, Eoemer. 

 Genus Geralycosa, Kusta : G. fritschii, Kusta. 

 Genus Rakovnicia, Kusta (= Eotarbus, Kusta) : R. antiqua, Kusta. 

 Sub-order PLETJRARANEffi, nov. 

 Family Hemipheynid^. 



Genus Hemiphrynus, Fritsch : H. longipes, kofmanni, Fritsch. 



Family PEOMYGALIDiE. 



Genus Promygale, Fritsch : P. bohemica, Fritsch, etc. 



Genus Perneria, Fritsch : P. salticoides, Fritsch. 



Genus Eopholcus, Fritsch : E. pedatus, Fritsch. 



Genus Pleurolycosa, Fritsch : P. prolifera, Fritsch. 



Genus Brachylycosa, Fritsch : B. carcinoides, Fritsch. 



Genus Pyritaranea, Fritsch : P. tubifera, Fritsch. 

 Order OPILIONES. 



Sub-order OPILIONIDJH VERI. 



Genus Nemastomoides, Thevenin : N. elaveris, Thevenin. 



Genus Dinopilio, Fritsch : D. gigas, Fritsch. 

 Sub-order MERIDOGASTRA (= ANTHRACOMARTI). 

 Family Poliocheeid^e. 



Genus Poliochera, Scudder: P. punctulata, Seudder. 

 Family Aechitaebid«. 



Genus Geraphrynus, Scudder : G. carbonarius, elongatus, Scudder. 



Genus Architarbus, Scudder: A.rotundatus, Scudder; subovalis, Woodward. 

 Family Antheacomaetid.e. 



Genus Anthracomartus, Kars.-l) : Several species. 



Genus Brachypyge, Woodward : B. carbonis, Woodward ; eeltica, Pocock. 



Genus Anthracosiro, Pocock : A. ivoodivardi, fritschii, Pocock. 



Genus Eotrogulus, Thevenin : E. fayoli, Thevenin. 



Genus Vratislavia, Fritsch : V. silesiaca, Roemer. 

 Family Eophrynid^i. 



Genus Eophrynus, Woodward : E. prestvicii, Buckland. 



Genus Stenotrogulus, Fritsch : S. salmi, Stur. 



Genus Cyclotrogulus, Fritsch : C. sturii, Haase. 



Genus Kreischeria, G-einitz : K. wiedei, G-einitz. 



Genus Hemikreischeria : H. geinitzi, Thevenin (= thevenini, Fritsch). 



Genus Petrovicia, Fritsch : P. proditoria, Fritsch. 



Genus Adelocaris, Packard : A. peruvianus, Packard. 



