and Species of Scorpions. 321 



dacus described below as planimanus reveals the same fact 

 "with respect to the flatness of the hand. 



Urodacus abruptus, Pocock. 



Urodacus abruptus, Pocock, Ann. Mag. Nat. Hist. (6) ii. p. 174. 

 Urodacus Keijserlingii, id. op. cit. viii. pp. 244, 245. 



This species is smaller than U. novce-hollandice, smoother, 

 with more elevated superior caudal crests, a relatively stouter 

 hand with weaker keels upon it. Moreover, the frontal lobes 

 are rounder, separated by a deeper excision, and the ocular 

 tubercle is shorter and better defined in front and beliind. 



This species seems to be common in S. and S.E. Australia. 

 The type of the species (a dried specimen) came from Ade- 

 laide ; but since it was described I have seen others in the 

 Museum of Owens College, iManchester, which are ticketed 

 Mt. Lofty, S. Australia, and Victoria. 



One from the latter locality is a male, the sex which has 

 not been hitherto described. It has 16-17 pectinal teeth, 

 with a carapace measuring 6 and a tail 32 millim., the total 

 length being 55 millim. A female from the same locality, 

 measuring 6-'3 millim., has the carapace 7*3 and the tail 31, 

 and only 11 pectinal teeth ; the genital operculum is very 

 .large, more than a semicircle, and longer than the sternum. 

 This same form of genital operculum is shown in the types 

 of U. Keyserlingiij a species which I now regard as identical 

 ■with abruptus. In the male above referred to the superior 

 caudal keels are elevated almost to the same extent as in 

 U. armatus. 



Urodacus planimanus, sp. n. 

 (PI. XIV. fig. 7 ; PI. XV. B. tigs. 1, 1 a.) 



Colour brunneo-ochraceous ; legs, vesicle, chelicer^e, and 

 lower surface paler. 



Carapace a little shorter than the first two caudal segments, 

 its anterior border deeply and abruptly mesially excised, the 

 lateral eyes not prominent ; the halves of the ocular tubercle 

 terminating behind the eyes; the area between the median 

 aTid lateral eyes polished and finely punctured ; the rest of 

 the surface finely granular. 



Terfjites finely granular, the last with two granular keels 

 on each side. 



Sternites smooth, polished, the last marked with two sub- 

 crenulate keels and very finely, closely granular posteriorly. 



Tail four times as long as the carapace ; posteriorly nar- 

 rowed, compressed, slender, with finely granular intercarlnal 

 spaces, the keels finely denticulate ; the upper keels of the 



