40 Records of the Indian Museum. [Vol. XVI, igi8 ] 



dark specimens, since it becomes lost in the general colour ; at the 

 ' neck ' however it is always well marked owing to the presence in 

 this region of dark pigment in the form of an indefinite band with 

 which the median stripe contrasts strongly. The dorsal side of the 

 head is pale and numerous eyes can easily be distinguished along 

 the edge ; the eyes are also crowded at the ' neck.' 



Ventrally, the colour is similar to the dorsal side, though 

 usually paler ; the ambulacral surface is white 



