306 Mr. R. I. Pocock on the 



Subfam. 2. Ischnxjuini = Ischnuridce, Sim., - Euscoijnus and 

 Belisurius. 



Ischnurus, Opisthacnnfhus, Opisthocentrits, Cheloctmus, 

 Chiromachus, Sonnurus, lomachus. 



Subfam. 3. Diplocentrini = J)«>/oeej?<rmi;', Karsch, +Kebo. 

 Diplocentnts, Oiclus, Nebo {Cyphocentrus). 



Subfam. 4. Hemiscoepiini, nov. 

 Hemiscoipius. 



Subfam. 5. Ueodacini, nov. 



Urodacus (lodacus), ? loctonus. 



Yam. II. luridae. 



Subfam. 1. \vjniii=-lurini-\- Vejowidce, Thor. 



Scorpiops, Tunis, Uroctonus, Anurnctunus, Vejocis, 

 Jiadrurus, Caraboctonus, Hadruroides. 



Subfam. 2. Ch^i{,ilini = 1m/-«u', Karsch, in part. 

 Chcerilus. 



Subfam. 3. Chactini. 



a. Euscor2nus. 



b. Chactas, Hadrwochactas, Heterochnctas, Teuthraus- 



tes, Brateochactas, Broteas. 



Fam. III. Bothriuridae, Sim.,= Teleyonidce auct. 



Bothriurus, Brachistosteryms, Mecoccntrus, Cercopho- 

 niits, TimogejieSf Thestylus, Urophonhis, Phonio- 

 cercus. 



Fam. IV. Buthidse, Sim. 



Prionurus, Btithus, Parabutluis, Grosphus, Btdheolus, 

 ArcMsometnis, Isumetroides, Uroplectes i^Lepreus, 

 Tityokpreus), TityobutJim, Pseudobiithus, Isonie- 

 trus, Tityus, Centrurus, Meteroctenus, Arfanteria, 

 Channus, Heteroeharmus, Stenochirus, 



Family Scorpionidse. 



The^e^ funiislied with a single anterior pedal spur. 

 Sternum large, pentagonal. 



Halves of the genital operculum united in the '^^ , separated 

 in the ($ . 



Stigmata elongate, narrow. 



A single row of teeth on each digit of the chelicer^e. 



Subfamily Scobpiomini. 



]\Iedian eyes not in front of tlic middle of the carapace, 

 sometimes very much behind the middle ; three lateral eyes 

 on each side. 



