394 University of California Publications in Zoology [Vol. 19 



caudal border of each metazonite and a series across anterior border, 

 there being in addition on the eollum and on the several immediately 

 following plates and on the eighteenth and nineteenth plates a third, 

 submedian, and more or less irregular series. Keels elevated or curved 

 up to or a little above level of middorsal region. Margins of keels 

 smooth, or with two slight indentations at most. 



Form of eollum and arrangement of its setae shown in plate 28, 

 figure 23. 



A weak longitudinal or somewhat oblique pleural keel evident on 

 fourth and fifth segments. The usual processes at base of legs. 



Cauda of anal segment much exceeding the valves, flattened, dis- 

 tally truncate, slightly convex above; bearing on caudal end four long, 

 double or geminate setae. Dorsal surface of anal scutum not finely 

 granular like the other tergites, though roughened. Plate bearing 

 four long setae along each margin, and two pairs above, one pair being 

 near middle of the plate, the other farther caudad (ef. pi. 28, fig. 24). 

 Anal valves strongly margined mesally ; smooth ; two setae in usual 

 position, each borne on tubercle. Anal scale with two long setae (cf. 

 pi. 28, fig. 25). 



Gonopods of the male of the same general type as those of kelaarti 

 Humbert, but differing in details. The end branch of the terminal 

 division longer and more slender, sigmoidally curved, distally bending 

 first mesad and then abruptly caudad instead of simply mesad as in 

 kelaarti. Style more slender, with the process across which it lies 

 longer. In ectal view the mesal hook is seen to curve moderately 

 distad instead of bending strongly proximad as it does in kelaarti 

 (seq. fig. of Attems. cf. pi. 28, fig. 22). 



In the male the fifth sternite between anterior pair of legs bears 

 the usual broad process which is moderately rounded and mesally fur- 

 rowed. Third joint of legs of fifth and sixth segment with a low 

 angular process proximad of middle on ventral surface. 



Measurements. — Length, to about 35 mm. ; width, 4.7 mm. 



Locality. — India : Coonoor. Two males and three females. 



Comparisons. — Obviously close to kelaarti Humbert. I have seen 

 no specimens of the latter species; but Attems' redescription and 

 drawings of the type seem to indicate a species different from the one 

 here described. The gonopods differ in a degree equivalent to that 

 between indus and the following species, atopus, sp. nov. Kelaarti 

 is a lighter, more reddish form with yellowish brown legs and antennae. 



