X62 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, 1892, 



Collum punctulate, its hinder border shortly striate, moderately 

 narrowed laterally, the anterior and posterior borders being inf eriorly 

 at most very slightly concave, the anterior angle rectangularly" 

 convex, the posterior angle nearly a right angle, marked with norma 

 marginal sulcus, but not marked with other sulci or striae. The rest 

 of the somites marked with transverse sulcus, the half in front 

 of the sulcus transversely striolate in front and thickly punctured 

 and rugulose close to the sulcus, the half behind the sulcus also closely 

 punctured and rugulose in front and shortly striolate along the hinder 

 border, the inferior part furnished with five longitudinal ridges, which 

 do not extend as high as the pores. Anal somite punctulate and 

 striolate ; the tergite simply angled along its posterior border, 

 without any caudal process, the angle not impressed, its apex just 

 covering but not projecting beyond the superior angle of the valves ; 

 valves widely but weakly compressed. Pores about the middle of 

 the side, behind the sulcus. 



Legs with a single set on the under surface of each segment. 



Number of segments 66, length about 88 mm, 



A single female specimen from Madras (Jordan colL) 



In the absence of a caudal process projecting beyond the anal 

 Talves, this species resembles Sp. insculjjtus and Sp. modestus. In 

 8p. modestus^ however, the segments are described as smooth, and in 

 8p^ insculptus they are very much more coarsely sculptured, the anal 

 tergite is more acutely angled, the valves more compressed, and the 

 face not rugose. 



Spirostrejytus centrums, sp. n, 

 (PI. ii, fig. 4.) 



6 , Colour ? specimen dried and faded, but probably castaneous or 

 olivaceous, with the hinder margins of the segments darker ; antenna© 

 and legs ochraceous. 



Head with a superior vertical sulcus, convex, smooth and polished, 

 with six labral punctures ; antennce long, reaching considerably 

 beyond the collum ; eyes rather small, composed of about 44 ocelli, 

 arranged in about 7 transverse rows, separated by a space that is 

 about equal to a diameter and a half. 



Collum very large, almost entirely smooth and polished ; the ante- 

 rior angle very much thickened and produced, so that the anterior 



