Note 6. The five normal terminal spines of the telson are subequal in length ; on the extreme left is a small 

 spine less than half the length of the others. There are clearly defined projections into the five 

 larger spines indicating that the succeeding stage will be five-spined. 



Note 7. There will be five telson spines in the succeeding stage, there is no projection into the existing 

 spine on the right. 



