Note 15. 



Note 



s very small, about one-quarter to 



about one-sixth the length of the 

 here being no projection into either 



Note 14. Of the six terminal telson spines the outermost on the left 

 one-fifth the length of the next spine to it (see Fig. 12 e). 



Of the seven terminal telson spines, the outermost are only 

 remainder. There are four projections into the existing spine, 

 of the small spines nor into the large spine on the left (see Fig. 12/). 



16. There are six terminal spines on the telson and there will be five in the following stage; there is 

 no projection into the spine on the extreme right, so that in the existing stage it is the outermost 

 spine on the left which is assumed to be missing. 



17. There are seven terminal telson spines; the outermost on each side only about three-quarters 

 the length of the remaining five, which are subequal. 



Note 



