464 Records of the Indian Museum. [Vol. VIII, 1914.] 



which completes the dorsal colouration. Occasionally the yellow 

 is absent and the brown meets the black centre line; in other 

 cases, a paler brown takes the place of the yellow. The brown 

 band is liable to much variation in shade; it may be little 

 more than a dusky yellow on the one hand, or a dirty brown 

 on the other, between which are all intermediate shades of 

 bright orange brown and chestnut brown. The upper surface of 

 the head is a dusky grey, with rather lighter patches round 

 the eyes; the general impression i« that of a cap on the head. 

 The median line merges gradually into this area. 



The dorsal lateral colouration is carried round the sides of 

 the body to the ventral surface, though often paler, as far as the 

 ambulacral surface, which is a pale ^^ellow (whitish in spirit); 

 the creeping surface is about a quarter the breadth of the body, 

 but wider at the mouth and genital pore ; and in some cases 

 forms a raised ridge, while in others it is quite flat or even 

 depressed. The mouth is placed at less than half way along 

 the ventral surface from the anterior end, and the genital pore 

 at positions varying from midway between the mouth and 

 posterior extremity to two thirds the same distance. 



