310 Ml-. E. I. Pocock on the 



A series of small teetli on the lower edge of both the digits 

 of the chelicerse. 



Digits of the chelaa furnished with a number of short over- 

 lapping series of denticles 



The lower surface of the feet furnished with two rows of 

 spines, and a very fine median series of spicules. 



Genus : Chcerilus^ Simon, with which ChelomachaSj Thorell, 

 and UromachuSj Pocock, are in all probability syno- 

 nymous. 



Distribution. From N. India, through Burma to Java and 

 Sumatra. 



The genus Chcerilus appears to have its nearest ally in 

 Scovpioys of the subfamily lurini. The two agree in geogra- 

 phical distribution as well as in some structural features, such 

 as the form of the sternum, shortness of the pectines, and 

 dentition of the movable digit of the chcliceree. 



Subfamily Ceactini. 



With two lateral eyes on each side of the carapace. 

 Inferior edge of the movable digit of the cheliceree un- 

 armed. 



a. S. European forms, with flattish body and chelae, compressed weak 



tail, large sternum, distinct fulcra, and intermediate lamellse on the 

 pectines, small oval stio^mata, and the feet compressed beneath and 

 furnished with a row of spicules. 



Genus : Euscorpius, Thor. 



b. Neotropical forms, with the body and palpi more convex, the median 



eyes more forward, the sternum not so large, the intermediate la- 

 mellae of the pectines undivided, and the fulcra small and often mem- 

 branous ; the stigmata are either elongate as in Broicas, or subcircular 

 as in the rest ; the feet as in Euscorpius, or with two rows of spines. 



Genera : Broteas, C. Koch ; BroteochactaSy Pocock ; Teu- 

 thraustesj Simon ; Heterochactas, Pocock ; Chactas, 

 Gerv.; Hadrurochactas^ Pocock. 



It is possible that Euscorpius may not belong to this sub- 

 family ; but it is not easy to see where else to place the genus 

 unless a special subfamily be erected for its reception. 



Family Bothriurida}, Simon. 



Scorpions of small or medium size. 



Carapace with the median eyes situated in the middle 

 or a little in front of it ; 3 lateral eyes. 



