Fig. 21-->h. ComnHer serrata (St. 59) 211 Pii ", i. i-1) Tlip tip of P,„ (9 Ti. x 17' s, 2.S1 Cirrus "/i, 

 24) An arm-stump with distal p— s '■" i. 2.5) Tlie l)ase of au arm witli I ami U Rr series. Tlie spines 

 Miiiih ocLMii- at tlie distal margins of tliir segment are most often broken '■• i; 2!)- 29 Comnster deli- 

 i:atii. firtniilis (Sp. 11 2(3i The tip of a di^tnl pinnule " i, 271 'I'lie ti]i of Pn " i, 2>^l Tirru-; ' i, 29) The 

 tip of a g.-iilla! p. wirh a rnmb. X 17 ' .•; :iO, ;il (_\)iiiintl In'riK grnnilirrih/j- (St. ."v2) :!0) Distal ])iii- 



