Scorpions and Centipedes from Madras. 249 



Maxillary sternite very wide, twice as wide as long, 

 marked by a deep and wide sulcus, which runs longitudinally 

 from the middle of the anterior border to the middle of the 

 posterior border ; maxillipedes almost reaching the anterior 

 border of the cephalic plate, the claw enormously long, lightly 

 curved, and blade-like. 



Antenna not attenuate, of a uniform thickness throughout, 

 the apical segment as long as the two that precede it ; shortly 

 hirsute. 



Tergites not bisulcate, but conspicuously although finely 

 striate. 



Sternites marked with a median circular porous area and 

 behind the middle with a transverse porous area, which in 

 the middle and hinder half of the body becomes divided into 

 two halves. 



Anal somite. — Tergite not covering the pleurae; pleural 

 moderately inflated, furnished with many close-set pores 

 where they come in contact with the anal tergite and sternite, 

 and a few scattered but conspicuous pores on the disk ; ster- 

 nite parallel-sided, with rounded postero-lateral angles and 

 straight posterior margin, its surface marked with a median 

 longitudinal sulcus ; anal legs very short, considerably shorter 

 than the preceding pair, composed of five segments and ter- 

 minated by a claw. 



Number of pairs of legs (?) 69 ; length 38 millim. 



A single specimen. 



This species has been only provisionally referred to the 

 genus Himantarium ; lack of material has prevented me 

 from putting the specimen to a critical examination suffi- 

 ciently exact to determine its generic position. It is un- 

 doubtedly congeneric with Dr. Meinert's Himantarium insigne 

 and indicum (two species from Kooloo), but it differs from 

 both in having its pleurae distinctly porous and its anal legs 

 armed with a claw. 



Mecistocepkalus punctifrons, Newport. 

 Common throughout the Oriental Region. 



EXPLANATION OF PLATE XII. 



Fig. 1. Hormurus lariceps, sp. n., 6 , nat. size. 



Fig. 1 a. Ditto, $ . Sternum, operculum, and pectines. 



Fig. 2. Otostigma mjiceps, sp. n. Head from above. 



Fig. 2 a. Ditto. Head from below. 



Fig. 2 b. Ditto. Anal pleura from the side. 



Fig. 3. Otostigma nudum, sp. n. Head from above. 



Ann. & Mag. N. Hist. Ser. 6. Vol. v. 19 



